10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D. C. 20549

FORM 10-Q

x Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the quarterly period ended March 30, 2013.

¨ Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from              to             

Commission File Number 001-32833

TransDigm Group Incorporated

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation or organization)

41-2101738

(I.R.S. Employer Identification No.)

1301 East 9th Street, Suite 3000, Cleveland, Ohio	44114
(Address of principal executive offices)	(Zip Code)

(216) 706-2960

(Registrant’s telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report.)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    YES  x    NO  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    YES  x    NO  ¨

Indicate by check mark whether the registrant is a large accelerated filer, accelerated filer, non-accelerated filer, or smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

LARGE ACCELERATED FILER	x	ACCELERATED FILER	¨
NON-ACCELERATED FILER	¨	SMALLER REPORTING COMPANY	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    YES  ¨    NO  x

The number of shares outstanding of TransDigm Group Incorporated’s common stock, par value $.01 per share, was 52,399,132 as of April 27, 2013.

INDEX

			Page
Part I		FINANCIAL INFORMATION
	Item 1	Financial Statements
		Condensed Consolidated Balance Sheets – March 30, 2013 and September 30, 2012		1
		Condensed Consolidated Statements of Income –Thirteen and Twenty-Six Week Periods Ended March 30, 2013 and March 31, 2012		2
		Condensed Consolidated Statements of Comprehensive Income –Thirteen and Twenty-Six Week Periods Ended March 30, 2013 and March 31, 2012		3
		Condensed Consolidated Statement of Changes in Stockholders’ Equity – Twenty-Six Week Period Ended March 30, 2013		4
		Condensed Consolidated Statements of Cash Flows – Twenty-Six Week Periods Ended March 30, 2013 and March 31, 2012		5
		Notes to Condensed Consolidated Financial Statements		6
	Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations		21
	Item 3	Quantitative and Qualitative Disclosure About Market Risk		35
	Item 4	Controls and Procedures		36
Part II		OTHER INFORMATION
	Item 1A	Risk Factors		36
	Item 2	Unregistered Sales of Equity Securities and Use of Proceeds		36
	Item 6	Exhibits		37
SIGNATURES				38

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED BALANCE SHEETS

(Amounts in thousands, except share amounts)

(Unaudited)

	March 30, 2013			September 30, 2012
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	680,024		$	440,524
Trade accounts receivable - Net		243,072			235,783
Inventories - Net		340,175			320,503
Deferred income taxes		23,632			29,134
Prepaid expenses and other		40,755			24,587
Total current assets		1,327,658			1,050,531
PROPERTY, PLANT AND EQUIPMENT - Net		175,442			172,737
GOODWILL		3,040,180			3,035,502
TRADEMARKS AND TRADE NAMES		461,477			467,614
OTHER INTANGIBLE ASSETS - Net		634,032			655,996
DEBT ISSUE COSTS - Net		44,975			62,190
OTHER		10,328			15,047
TOTAL ASSETS	$	5,694,092		$	5,459,617
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt	$	22,000		$	20,500
Accounts payable		73,696			74,178
Accrued liabilities		163,565			139,237
Total current liabilities		259,261			233,915
LONG-TERM DEBT		4,322,500			3,598,625
DEFERRED INCOME TAXES		361,288			356,896
OTHER NON-CURRENT LIABILITIES		65,674			51,347
Total liabilities		5,008,723			4,240,783
STOCKHOLDERS’ EQUITY:
Common stock - $.01 par value; authorized 224,400,000 shares; issued 52,901,288 and 52,157,225 at March 30, 2013 and September 30, 2012, respectively		529			521
Additional paid-in capital		620,485			553,223
Retained earnings		95,981			689,229
Accumulated other comprehensive loss		(15,538	)		(8,051	)
Treasury stock, at cost; 505,400 shares at March 30, 2013 and September 30, 2012, respectively		(16,088	)		(16,088	)
Total stockholders’ equity		685,369			1,218,834
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	5,694,092		$	5,459,617

See notes to condensed consolidated financial statements.

-1-

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

FOR THE THIRTEEN AND TWENTY-SIX WEEK PERIODS ENDED

MARCH 30, 2013 AND MARCH 31, 2012

(Amounts in thousands, except per share amounts)

(Unaudited)

	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March 30, 2013		March 31, 2012		March 30, 2013		March 31, 2012
NET SALES	$	465,609	$	423,469	$	896,027	$	775,942
COST OF SALES		206,299		187,429		398,170		340,347
GROSS PROFIT		259,310		236,040		497,857		435,595
SELLING AND ADMINISTRATIVE EXPENSES		55,463		49,474		110,624		91,324
AMORTIZATION OF INTANGIBLE ASSETS		9,735		9,339		20,275		21,778
INCOME FROM OPERATIONS		194,112		177,227		366,958		322,493
INTEREST EXPENSE - Net		64,094		52,300		126,970		101,361
REFINANCING COSTS		30,281		—		30,281		—
INCOME BEFORE INCOME TAXES		99,737		124,927		209,707		221,132
INCOME TAX PROVISION		31,800		43,375		67,600		74,475
NET INCOME	$	67,937	$	81,552	$	142,107	$	146,657
NET INCOME APPLICABLE TO COMMON STOCK	$	67,937	$	81,552	$	103,977	$	143,358
Net earnings per share - see Note 5:
Basic and diluted	$	1.25	$	1.51	$	1.91	$	2.66
Cash dividends paid per common share	$	—	$	—	$	12.85	$	—
Weighted-average shares outstanding:
Basic and diluted		54,453		53,882		54,453		53,882

See notes to condensed consolidated financial statements.

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

FOR THE THIRTEEN AND TWENTY-SIX WEEK PERIODS ENDED

MARCH 30, 2013 AND MARCH 31, 2012

(Amounts in thousands)

(Unaudited)

	Thirteen Week Periods Ended						Twenty-Six Week Periods Ended
	March 30,			March 31,			March 30,			March 31,
	2013			2012			2013			2012
Net income	$	67,937		$	81,552		$	142,107		$	146,657
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments		(8,995	)		2,944			(6,943	)		(697	)
Interest rate swap agreements, net of tax		(330	)		(600	)		(330	)		(1,300	)
Other		—			—			(214	)		—
Other comprehensive income (loss), net of tax		(9,325	)		2,344			(7,487	)		(1,997	)
TOTAL COMPREHENSIVE INCOME	$	58,612		$	83,896		$	134,620		$	144,660

See notes to condensed consolidated financial statements.

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 30, 2013

(Amounts in thousands, except share amounts)

(Unaudited)

										Accumulated Other Comprehensive Loss
	Common Stock				Additional								Treasury Stock
	Number of Shares		Par Value		Paid-In Capital		Retained Earnings						Number of Shares			Value			Total
BALANCE, OCTOBER 1, 2012		52,157,225	$	521	$	553,223	$	689,229		$	(8,051	)		(505,400	)	$	(16,088	)	$	1,218,834
Dividends paid		—		—		—		(699,715	)		—			—			—			(699,715	)
Unvested dividend equivalent payments		—		—		—		(35,640	)		—			—			—			(35,640	)
Compensation expense recognized for employee stock options		—		—		14,262		—			—			—			—			14,262
Excess tax benefits related to share-based payment arrangements		—		—		40,044		—			—			—			—			40,044
Exercise of employee stock options		743,766		8		12,911		—			—			—			—			12,919
Common stock issued		297		—		45		—			—			—			—			45
Net income		—		—		—		142,107			—			—			—			142,107
Interest rate swaps, net of tax		—		—		—		—			(330	)		—			—			(330	)
Foreign currency translation adjustments		—		—		—		—			(6,943	)		—			—			(6,943	)
Other		—		—		—		—			(214	)		—			—			(214	)
BALANCE, MARCH 30, 2013		52,901,288	$	529	$	620,485	$	95,981		$	(15,538	)		(505,400	)	$	(16,088	)	$	685,369

See notes to condensed consolidated financial statement

-4-

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in thousands)

(Unaudited)

	Twenty-Six Week Periods Ended
	March 30, 2013			March 31, 2012
OPERATING ACTIVITIES:
Net income	$	142,107		$	146,657
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		13,407			11,154
Amortization of intangible assets		20,366			21,875
Amortization of debt issue costs		6,966			5,741
Refinancing costs		30,281			—
Non-cash equity compensation		14,262			8,535
Excess tax benefits related to share-based payment arrangements		(40,044	)		(24,231	)
Deferred income taxes		5,482			(3,470	)
Changes in assets/liabilities, net of effects from acquisitions of businesses:
Trade accounts receivable		(6,344	)		(9,193	)
Inventories		(18,226	)		(772	)
Income taxes receivable/payable		25,183			4,482
Other assets		2,776			1,889
Accounts payable		(1,825	)		(4,092	)
Accrued and other liabilities		2,898			6,387
Net cash provided by operating activities		197,289			164,962
INVESTING ACTIVITIES:
Capital expenditures		(16,316	)		(9,109	)
Acquisition of businesses, net of cash acquired		(8,501	)		(833,512	)
Cash proceeds from sale of investment		10,500			—
Cash proceeds from working capital settlement		134			—
Net cash used in investing activities		(14,183	)		(842,621	)
FINANCING ACTIVITIES:
Excess tax benefits related to share-based payment arrangements		40,044			24,231
Proceeds from exercise of stock options		12,919			7,316
Dividends paid		(702,406	)		(3,299	)
Treasury stock purchased		—			(846	)
Proceeds from 2013 credit facility - net		2,191,127			—
Repayment on 2013 credit facility		(5,500	)		—
Proceeds from 2011 credit facility - net		147,360			484,713
Repayment on 2011 credit facility		(2,169,125	)		(9,000	)
Proceeds from senior subordinated notes due 2020 - net		542,000			—
Net cash provided by financing activities		56,419			503,115
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		(25	)		(158	)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		239,500			(174,702	)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		440,524			376,183
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	680,024		$	201,481
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest	$	108,390		$	93,884
Cash paid during the period for income taxes	$	37,124		$	57,780

See notes to condensed consolidated financial statements.

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TRANSDIGM GROUP INCORPORATED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

TWENTY-SIX WEEK PERIODS ENDED MARCH 30, 2013 AND MARCH 31, 2012

(UNAUDITED)

1. DESCRIPTION OF THE BUSINESS

Description of the Business – TransDigm Group Incorporated (“TD Group”), through its wholly-owned subsidiary, TransDigm Inc., is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly all commercial and military aircraft in service today. TransDigm Inc., along with TransDigm Inc.’s direct and indirect wholly-owned operating subsidiaries (collectively, with TD Group, the “Company” or “TransDigm”), offers a broad range of proprietary aerospace components. TD Group has no significant assets or operations other than its 100% ownership of TransDigm Inc. TD Group’s common stock is listed on The New York Stock Exchange, or the NYSE, under the trading symbol “TDG.”

Major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, NiCad batteries and chargers, engineered latching and locking devices, rods and locking devices, engineered connectors and elastomers, cockpit security components and systems, specialized cockpit displays, aircraft audio systems, specialized lavatory components, seatbelts and safety restraints, engineered interior surfaces and lighting and control technology.

Separate Financial Statements – Separate financial statements of TransDigm Inc. are not presented because TransDigm Inc.’s 7³/₄% senior subordinated notes and 5 ¹/₂% senior subordinated notes are fully and unconditionally guaranteed on a senior subordinated basis by TD Group and all existing 100% owned domestic subsidiaries of TransDigm Inc. and because TD Group has no significant operations or assets separate from its investment in TransDigm Inc.

2. UNAUDITED INTERIM FINANCIAL INFORMATION

The financial information included herein is unaudited; however, the information reflects all adjustments (consisting solely of normal recurring adjustments) that are, in the opinion of management, necessary for a fair presentation of the Company’s financial position and results of operations and cash flows for the interim periods presented. These financial statements and notes should be read in conjunction with the financial statements and related notes for the year ended September 30, 2012 included in TD Group’s Form 10-K dated November 16, 2012. As disclosed therein, the Company’s annual consolidated financial statements were prepared in conformity with generally accepted accounting principles in the United States (“GAAP”). The September 30, 2012 condensed consolidated balance sheet was derived from TD Group’s audited financial statements. The results of operations for the twenty-six week period ended March 30, 2013 are not necessarily indicative of the results to be expected for the full year.

Certain reclassifications of prior year amounts have been made to the Condensed Consolidated Statement of Cash Flows to conform to current year classification to reflect the effect of exchange rate changes on cash and cash equivalents relating to our foreign operations.

3. ACQUISITIONS

Aero-Instruments Co., LLC – On September 17, 2012, TransDigm Inc. acquired all of the outstanding equity interests in Aero-Instruments Co., LLC (“Aero-Instruments”), for approximately $34.6 million in cash, which includes a purchase price adjustment of $0.1 million received in the first quarter of fiscal 2013. Aero-Instruments designs and manufactures highly engineered air data sensors including pitot probes, pitot-static probes, static pressure ports, angle of attack, temperature sensors and flight test equipment for use primarily in the business jet and helicopter markets. These products fit well with TransDigm’s overall business direction. The Company expects that the approximately $22 million of goodwill recognized for the acquisition will be deductible for tax purposes.

-6-

AmSafe Global Holdings, Inc. – On February 15, 2012, TransDigm Inc. acquired all of the outstanding stock of AmSafe Global Holdings, Inc. (“AmSafe”), for approximately $749.7 million in cash, which includes a purchase price adjustment of $0.5 million paid in the third quarter of fiscal 2012. AmSafe is a leading supplier of innovative, highly engineered and proprietary safety and restraint equipment used primarily in the global aerospace industry. These products fit well with TransDigm’s overall business direction. The distribution business acquired as part of AmSafe was sold on August 16, 2012 for approximately $17.8 million in cash, which includes a working capital adjustment of $0.1 million received in the first quarter of fiscal 2013. The equity investment in C-Safe LLC acquired as part of AmSafe was sold in October 2012 for approximately $16.4 million, which consisted of $5.0 million in cash at closing and an $11.4 million short-term note receivable, of which $5.5 million was collected in the second quarter of fiscal 2013.

The total purchase price was allocated to the underlying assets acquired and liabilities assumed based upon management’s estimated fair values at the date of acquisition. To the extent the purchase price exceeded the estimated fair value of the net identifiable tangible and intangible assets acquired, such excess was allocated to goodwill. The following table summarizes the purchase price allocation of the estimated fair values of the assets acquired and liabilities assumed at the transaction date (in thousands).

Assets acquired:
Current assets, excluding cash acquired	$	122,694
Property, plant and equipment		20,787
Intangible assets		270,500
Goodwill		396,823
Other		15,614
Total assets acquired	$	826,418
Liabilities assumed:
Current liabilities	$	24,979
Deferred income taxes - long term		48,626
Other noncurrent liabilities		3,082
Total liabilities assumed	$	76,687
Net assets acquired	$	749,731

The Company expects that of the $397 million of goodwill recognized for the acquisition approximately $77 million will be deductible for tax purposes.

Harco Laboratories, Incorporated – On December 9, 2011, TransDigm Inc. acquired all of the outstanding stock of Harco Laboratories, Incorporated (“Harco”), for approximately $83.3 million in cash, which includes a purchase price adjustment of $0.4 million paid in the second quarter of fiscal 2012. Harco designs and manufactures highly engineered thermocouples, sensors, engine cable assemblies and related products for commercial aircraft. These products fit well with TransDigm’s overall business direction. The Company expects that the approximately $56 million of goodwill recognized for the acquisition will not be deductible for tax purposes.

The Company accounted for the acquisitions using the acquisition method and included the results of operations of the acquisitions in its consolidated financial statements from the effective date of each acquisition. The Company is in the process of obtaining a third-party valuation of certain tangible and intangible assets of Aero-Instruments, therefore, the values attributed to those acquired assets in the consolidated financial statements are subject to adjustment. Pro forma net sales and results of operations for the acquisitions had they occurred at the beginning of the applicable thirteen and twenty-six week periods ended March 30, 2013 or March 31, 2012, are not significant and, accordingly, are not provided.

The acquisitions strengthen and expand the Company’s position to design, produce and supply highly-engineered proprietary aerospace components in niche markets with significant aftermarket content and provide opportunities to create value through the application of our three core value-driven operating strategies (obtaining profitable new business, improving our cost structure, and providing highly engineered value-added products to customers). The purchase price paid for each acquisition reflects the current earnings before interest, taxes, depreciation and amortization (EBITDA) and cash flows, as well as, the future EBITDA and cash flows expected to be generated by the business, which are driven in most cases by the recurring aftermarket consumption over the life of a particular aircraft, estimated to be approximately 30 years.

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4. RECENT ACCOUNTING PRONOUNCEMENTS

In June 2011, the Financial Accounting Standards Board (“FASB”) issued authoritative accounting guidance included in Accounting Standards Codification (“ASC”) Topic 220, “Comprehensive Income.” This guidance eliminates the option to report other comprehensive income and its components in the statement of changes in equity. Companies can elect to present items of net income and other comprehensive income in one continuous statement or in two separate, but consecutive, statements. The Company adopted the presentation guidance during the first quarter of fiscal 2013 and has elected to present two separate consecutive statements.

In September 2011, the FASB issued authoritative accounting guidance included in ASC Topic 350, “Intangibles—Goodwill and Other”. This guidance amends the requirements for goodwill impairment testing. The Company has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, the Company determines it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, then performing the two-step impairment test is unnecessary. This guidance is effective for the Company for its annual goodwill impairment testing for the year ending September 30, 2013. The Company does not expect this guidance to have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

In July 2012, the FASB issued authoritative guidance included in ASC Topic 350, “Intangibles—Goodwill and Other.” This guidance permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is impaired, as a basis for determining whether it is necessary to perform the quantitative impairment test described in FASB ASC Topic 350, “Intangibles—Goodwill and Other.” This guidance is effective for the Company for its annual impairment testing for the year ending September 30, 2013. The Company does not expect this guidance to have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

5. EARNINGS PER SHARE (TWO-CLASS METHOD)

The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):

	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March  30, 2013		March  31, 2012		March  30, 2013			March  31, 2012
Numerator for earnings per share:
Net income	$	67,937	$	81,552	$	142,107		$	146,657
Less dividends paid on participating securities		—		—		(38,130	)		(3,299	)
Net income applicable to common stock - basic and diluted	$	67,937	$	81,552	$	103,977		$	143,358
Denominator for basic and diluted earnings per share under the two-class method:
Weighted average common shares outstanding		52,204		50,800		52,001			50,615
Vested options deemed participating securities		2,249		3,082		2,452			3,267
Total shares for basic and diluted earnings per share		54,453		53,882		54,453			53,882
Basic and diluted earnings per share	$	1.25	$	1.51	$	1.91		$	2.66

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6. INVENTORIES

Inventories are stated at the lower of cost or market. Cost of inventories is determined by the average cost and the first-in, first-out (FIFO) methods for all locations except CEF Industries LLC, which determines the cost of inventories using the last-in, first-out (LIFO) method. Approximately 6% of the inventory was valued under the LIFO method at March 30, 2013.

Inventories consist of the following (in thousands):

	March 30, 2013			September 30, 2012
Raw materials and purchased component parts	$	226,475		$	203,809
Work-in-progress		101,008			102,645
Finished Goods		50,550			48,395
Total		378,033			354,849
Reserves for excess and obsolete inventory and LIFO		(37,858	)		(34,346	)
Inventories - net	$	340,175		$	320,503

7. INTANGIBLE ASSETS

Intangible assets subject to amortization consist of the following (in thousands):

	March 30, 2013						September 30, 2012
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Technology	$	721,282	$	122,954	$	598,328	$	723,231	$	105,995	$	617,236
Order backlog		3,954		3,877		77		5,910		3,965		1,945
Other		43,272		7,645		35,627		43,343		6,528		36,815
Total	$	768,508	$	134,476	$	634,032	$	772,484	$	116,488	$	655,996

Intangible assets acquired during the twenty-six week period ended March 30, 2013 were as follows (in thousands):

	Cost		Amortization Period
Intangible assets not subject to amortization:
Goodwill	$	5,485
Trademarks and trade names		350
		5,835
Intangible assets subject to amortization:
Technology		1,200		20 years
		1,200
Total	$	7,035

The aggregate amortization expense on identifiable intangible assets for the twenty-six week periods ended March 30, 2013 and March 31, 2012 was approximately $20.4 million and $21.9 million, respectively. The estimated amortization expense for fiscal 2013 is $38.2 million and $36.1 million for each of the five succeeding years 2014 through 2018.

-9-

The following is a summary of changes in the carrying value of goodwill from September 30, 2012 through March 30, 2013 (in thousands):

Balance, September 30, 2012	$	3,035,502
Goodwill acquired during the year		5,485
Other		(807	)
Balance, March 30, 2013	$	3,040,180

8. DEBT

The Company’s long-term debt consists of the following (in thousands):

	March 30, 2013		September 30, 2012
Term loans	$	2,194,500	$	2,019,125
Senior Subordinated Notes due 2018		1,600,000		1,600,000
Senior Subordinated Notes due 2020		550,000		—
		4,344,500		3,619,125
Less current portion		22,000		20,500
Long-term debt	$	4,322,500	$	3,598,625

Amendment No. 2 to 2010 (Revolving) Credit Facility - In accordance with the terms of the credit agreement dated December 6, 2010, as amended by the Amendment No.1, dated as of March 25, 2012 (the “2010 Credit Facility”), TransDigm Inc. entered into Amendment No. 2 to the 2010 Credit Facility on October 9, 2012. Amendment No. 2 to the 2010 Credit Facility provided for a modification to the restricted payment covenant to permit a special dividend in an amount not to exceed $850 million and a modification to the financial covenant ratios.

Amendment No. 2 to 2011 (Term Loan) Credit Facility - In accordance with the terms of the credit agreement, dated as of February 14, 2011, as amended by Amendment No. 1 and Incremental Term Loan Assumption Agreement, dated as of February 15, 2012 (the “2011 Credit Facility”), TransDigm Inc. entered into Amendment No. 2 and Incremental Term Loan Assumption Agreement to the 2011 Credit Facility (the “2012 Term Loan Credit Facility Amendment”) on October 9, 2012. The 2012 Term Loan Credit Facility Amendment provides for an additional term loan facility in the aggregate principal amount of $150 million. The additional term loan facility was fully drawn on October 15, 2012.

Amended and Restated Credit Facility - On February 28, 2013, TransDigm Inc. entered into an Amendment and Restatement Agreement (the “Amendment and Restatement Agreement”) in which TransDigm amended and restated its 2010 Credit Facility and 2011 Credit Facility. The Amendment and Restatement Agreement provides for a $2,200 million term loan facility (the “New Term Loan Facility”), which was fully drawn on February 28, 2013, and a $310 million revolving credit facility (the “Revolving Credit Facility” and together with the Term Loan Facility, the “2013 Credit Facility”).

The proceeds of the New Term Loan Facility were used to repay in full the outstanding term loans under the 2011 Credit Facility and the related transaction expenses associated therewith. The New Term Loan Facility consists of two tranches of term loans—tranche B term loans and tranche C term loans, and the Revolving Credit Facility consists of two tranches—revolving A commitments and revolving B commitments. The tranche B term loans consist of $500 million in the aggregate and the tranche C term loans consist of $1,700 million in the aggregate. The tranche B term loans mature on February 14, 2017 and the tranche C term loans mature on February 28, 2020. The Term Loan Facility requires quarterly principal payments of $5.5 million which began on March 28, 2013. The revolving A commitments consist of $32 million in the aggregate and the revolving B commitments consist of $278 million in the aggregate. The revolving A commitments mature on December 6, 2015 and the revolving B commitments mature on February 28, 2018. At March 30, 2013, the Company had $6.7 million letters of credit outstanding and $303.3 million of borrowings available under the 2013 Credit Facility.

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Under the terms of the 2013 Credit Facility, TransDigm is entitled on one or more occasions, subject to the satisfaction of certain conditions, to request additional commitments under the Revolving Credit Facility or additional term loans in the aggregate principal amount of up to $500 million to the extent that existing or new lenders agree to provide such additional term loans. In addition, TransDigm is entitled to convert, subject to certain conditions, the revolving A commitments to revolving B commitments.

All of the indebtedness outstanding under the 2013 Credit Facility is guaranteed by TD Group and all of TransDigm’s current and future domestic restricted subsidiaries (other than immaterial subsidiaries). In addition, the obligations of TransDigm and the guarantors under the 2013 Credit Facility are secured ratably in accordance with each lender’s respective revolving and term loan commitments by a first priority security interest in substantially all of the existing and future property and assets, including inventory, equipment, general intangibles, intellectual property, investment property and other personal property (but excluding leasehold interests and certain other assets) of TransDigm and its existing and future domestic restricted subsidiaries (other than immaterial subsidiaries), and a first priority pledge of the capital stock of TransDigm and its subsidiaries (other than foreign subsidiaries and certain domestic subsidiaries, of which 65% of the voting capital stock is pledged).

The interest rates per annum applicable to the loans under the 2013 Credit Facility will be, at TransDigm’s option, equal to either an alternate base rate or an adjusted LIBO rate for one, two, three or six-month (or to the extent agreed to by each relevant lender, nine or twelve-month) interest periods chosen by TransDigm, in each case plus an applicable margin percentage. The adjusted LIBO rate is subject to a floor of .75%. At March 30, 2013 the applicable interest rate was 3.50% on the tranche B term loan and 3.75% on the tranche C term loan.

The term loan facility requires mandatory prepayments of principal based on certain percentages of Excess Cash Flow (as defined in the 2013 Credit Facility), commencing 90 days after the end of each fiscal year, commencing with the fiscal year ending September 30, 2014, subject to certain exceptions. In addition, subject to certain exceptions (including, with respect to asset sales, the reinvestment in productive assets), TransDigm will be required to prepay the loans outstanding under the term loan facility at 100% of the principal amount thereof, plus accrued and unpaid interest, with the net cash proceeds of certain asset sales and issuance or incurrence of certain indebtedness. In addition, if, prior to February 28, 2014, the principal amount of the term loans are (i) prepaid substantially concurrently with the incurrence by TD Group, TransDigm or any its subsidiaries of new bank loans that have an effective yield lower than the yield in effect on the term loans so prepaid or (ii) received by a lender due to a mandatory assignment following the failure of such lender to consent to an amendment of the 2013 Credit Facility that has the effect of reducing the effective interest rate with respect to the term loans, such prepayment or receipt shall be accompanied by a premium of 1.0%.

The 2013 Credit Facility contains certain covenants that limit the ability of TD Group, TransDigm and TransDigm’s restricted subsidiaries to, among other things: (i) incur or guarantee additional indebtedness or issue preferred stock; (ii) pay distributions on, redeem or repurchase capital stock or redeem or repurchase subordinated debt; (iii) make investments; (iv) sell assets; (v) enter into agreements that restrict distributions or other payments from restricted subsidiaries to TransDigm; (vi) incur or suffer to exist liens securing indebtedness; (vii) consolidate, merge or transfer all or substantially all of their assets; and (viii) engage in transactions with affiliates.

The Company recorded refinancing costs of $30.3 million during the thirteen week period ended March 30, 2013 representing debt issue costs expensed in conjunction with the refinancing of our 2010 Credit Facility and 2011 Credit Facility.

Issuance of Senior Subordinated Notes - On October 15, 2012 TransDigm Inc. issued $550 million in aggregate principal amount of its 5¹/₂% Senior Subordinated Notes due 2020 (the “2020 Notes”) at an issue price of 100% of the principal amount. The 2020 Notes bear interest at the rate of 5 ¹/₂% per annum, which accrues from October 15, 2012 and is payable semiannually in arrears on April 15 and October 15 of each year, commencing on April 15, 2013. The 2020 Notes mature on October 15, 2020, unless earlier redeemed or repurchased, and are subject to the terms and conditions as defined in the indenture governing the 2020 notes.

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The 2020 Notes are subordinated to all of TransDigm’s existing and future senior debt, rank equally with all of its existing and future senior subordinated debt and rank senior to all of its future debt that is expressly subordinated to the 2020 Notes. The 2020 Notes are guaranteed on a senior subordinated unsecured basis by TD Group and its wholly-owned domestic subsidiaries named in the indenture. The guarantees of the 2020 Notes are subordinated to all of the guarantors’ existing and future senior debt, rank equally with all of their existing and future senior subordinated debt and rank senior to all of their future debt that is expressly subordinated to the guarantees of the 2020 Notes. The 2020 Notes are structurally subordinated to all of the liabilities of TD Group’s non-guarantor subsidiaries.

Special Cash Dividend - On October 15, 2012 the Company’s board of directors authorized and declared a special cash dividend of $12.85 on each outstanding share of common stock and cash dividend equivalent payments under its stock option plans. The special cash dividend amounting to approximately $664.3 million was paid in November 2012 and dividend equivalent payments amounting to approximately $35.4 million were paid in November and December 2012.

9. INCOME TAXES

At the end of each reporting period, TD Group makes an estimate of its annual effective income tax rate. The estimate used in the year-to-date period may change in subsequent periods. During the thirteen week periods ended March 30, 2013 and March 31, 2012, the effective income tax rate was 31.9% and 34.7%, respectively. The lower effective tax rate for the thirteen week period ended March 30, 2013 was primarily due to the retroactive reinstatement of the research and development tax credit and an increased benefit from the domestic manufacturing deduction. During the twenty-six week periods ended March 30, 2013 and March 31, 2012, the effective income tax rate was 32.2% and 33.7%, respectively. The lower effective tax rate for the twenty-six week period ended March 30, 2013 was primarily due to the factors referred to above.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction, various state and local jurisdictions as well as foreign jurisdictions located in Belgium, China, France, Malaysia, Mexico, Singapore, Sri Lanka and the United Kingdom. The Company is no longer subject to U.S. federal examinations for years before fiscal 2011. AmSafe is subject to U.S. federal examinations for the 2008, 2009, 2010 and 2011 years. In addition, the Company is subject to state income tax examinations for fiscal years 2009 and later.

At March 30, 2013 and September 30, 2012, TD Group had $7.1 million and $6.9 million in unrecognized tax benefits, the recognition of which would have an effect of approximately $6.5 million and $6.3 million on the effective tax rate at March 30, 2013 and September 30, 2012, respectively. The Company does not believe that the tax positions that comprise the unrecognized tax benefit amount will change significantly over the next 12 months. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in income tax expense.

10. FAIR VALUE MEASUREMENTS

The following tables present our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

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The following summarizes the carrying amounts and fair values of financial instruments (in thousands):

			March 30, 2013				September 30, 2012
	Level		Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents		1	$	680,024	$	680,024	$	440,524	$	440,524
Liabilities:
Interest rate swap agreements (1)		2		9,000		9,000		9,800		9,800
Long-term debt:
Term loans		2		2,194,500		2,217,000		2,019,125		2,037,000
7  3/4% Senior Subordinated Notes due 2018		1		1,600,000		1,752,000		1,600,000		1,696,000
5  1/2% Senior Subordinated Notes due 2020		1		550,000		572,000		—		—

(1) Included in Accrued liabilities on the Condensed Consolidated Balance Sheet.

Interest rate swaps were measured at fair value using quoted market prices for the swap interest rate indexes over the term of the swap discounted to present value versus the fixed rate of the contract. The estimated fair value of the Company’s term loans was based on information provided by the agent under the Company’s senior secured credit facility. The estimated fair values of the Company’s 7³/₄% Senior Subordinated Notes due 2018 and 5¹/₂% Senior Subordinated Notes due 2020 were based upon quoted market prices.

11. DERIVATIVES AND HEDGING ACTIVITIES

The Company is exposed to, among other things, the impact of changes in interest rates in the normal course of business. The Company’s risk management program is designed to manage the exposure and volatility arising from these risks, and utilizes derivative financial instruments to offset a portion of these risks. The Company uses derivative financial instruments only to the extent necessary to hedge identified business risks and does not enter into such transactions for trading purposes. The Company generally does not require collateral or other security with counterparties to these financial instruments and is therefore subject to credit risk in the event of nonperformance; however, the Company monitors credit risk and currently does not anticipate nonperformance by other parties.

At March 30, 2013, three forward-starting interest rate swap agreements were in place to swap variable rates on the 2013 Credit Facility for a fixed rate based on an aggregate notional amount of $353 million. These interest rate swap agreements converted the variable interest rate on the aggregate notional amount of the 2013 Credit Facility to a fixed rate of 5.17% (2.17% plus the 3% margin percentage) through June 30, 2015.

Interest rate swap agreements are used to manage interest rate risk associated with floating-rate borrowings under our 2013 Credit Facility. The interest rate swap agreements utilized by the Company effectively modify the Company’s exposure to interest rate risk by converting a portion of the Company’s floating-rate debt to a fixed rate basis through the expiration date of the interest rate swap agreements, thereby reducing the impact of interest rate changes on future interest expense. These agreements involve the receipt of floating rate amounts in exchange for fixed rate interest payments over the term of the agreements without an exchange of the underlying principal amount. Prior to February 28, 2013, these derivative instruments qualified as effective cash flow hedges under GAAP. For these cash flow hedges, the effective portion of the gain or loss from the financial instruments was initially reported as a component of accumulated other comprehensive income (loss) in stockholders’ equity and subsequently reclassified into earnings in the same line as the hedged item in the same period or periods during which the hedged item affected earnings.

In conjunction with the refinancing of the 2011 Credit Facility, the Company no longer designated the interest rate swap agreements as cash flow hedges for accounting purposes. Accordingly, amounts previously recorded as a component of accumulated other comprehensive loss in stockholder’s equity will be amortized into earnings over the remaining period of the swap agreements. The net after-tax loss included in accumulated other comprehensive loss to be reclassified into interest expense over the remaining term of the swap agreement was $6.5 million at March 30, 2013.

12. STOCK-BASED COMPENSATION

In connection with the $12.85 special cash dividend paid in November 2012, in order to take into account the earlier return of capital, the TD Group compensation committee adjusted the market-based vesting features in outstanding options pursuant to the authority granted to the committee under the TD Group stock incentive plan. Under this “market sweep” provision, unvested options granted prior to October 1, 2011 will accelerate and become fully vested if the closing price of the Company’s common stock exceeds $147.15 per share (previously $160 per share) on any 60 trading days during any consecutive 12-month period commencing March 1, 2013 and unvested options granted in fiscal 2012 will accelerate and become fully vested if the closing price of the Company’s common stock exceeds $157.15 per share (previously $170 per share) on any 60 trading days during any consecutive 12-month period commencing two years from the date of grant. Options granted in fiscal 2013 do not contain such accelerated vesting provision.

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13. SUPPLEMENTAL GUARANTOR INFORMATION

TransDigm’s 7³/₄% Senior Subordinated Notes due 2018 and 5¹/₂% Senior Subordinated Notes due 2020 are jointly and severally guaranteed, on a senior subordinated basis, by TD Group and TransDigm Inc.’s 100% owned Domestic Restricted Subsidiaries, as defined in the indentures. The following supplemental condensed consolidating financial information presents, in separate columns, the balance sheets of the Company as of March 30, 2013 and September 30, 2012 and its statements of income and cash flows for the twenty-six week periods ended March 30, 2013 and March 31, 2012 for (i) TransDigm Group on a parent only basis with its investment in subsidiaries recorded under the equity method, (ii) TransDigm Inc. including its directly owned operations and non-operating entities, (iii) the Subsidiary Guarantors on a combined basis, (iv) Non-Guarantor Subsidiaries and (v) the Company on a consolidated basis.

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING BALANCE SHEET

AS OF MARCH 30, 2013

	TransDigm Group		TransDigm Inc.		Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	15,116	$	650,225	$	4,641	$	10,042	$	—		$	680,024
Trade accounts receivable - Net		—		14,750		211,755		17,442		(875	)		243,072
Inventories - Net		—		27,152		286,846		27,000		(823	)		340,175
Deferred income taxes		—		23,632		—		—		—			23,632
Prepaid expenses and other		—		29,148		8,104		3,503		—			40,755
Total current assets		15,116		744,907		511,346		57,987		(1,698	)		1,327,658
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		670,253		4,737,253		2,233,626		84,905		(7,726,037	)		—
PROPERTY, PLANT AND EQUIPMENT - Net		—		15,616		146,698		13,128		—			175,442
GOODWILL		—		64,462		2,900,328		75,390		—			3,040,180
TRADEMARKS AND TRADE NAMES		—		19,377		411,656		30,444		—			461,477
OTHER INTANGIBLE ASSETS - Net		—		7,836		594,757		31,439		—			634,032
DEBT ISSUE COSTS - Net		—		44,975		—		—		—			44,975
OTHER		—		2,714		7,204		407		3			10,328
TOTAL ASSETS	$	685,369	$	5,637,140	$	6,805,615	$	293,700	$	(7,727,732	)	$	5,694,092
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt	$	—	$	22,000	$	—	$	—	$	—		$	22,000
Accounts payable		—		10,070		53,897		10,611		(882	)		73,696
Accrued liabilities		—		94,491		61,076		7,998		—			163,565
Total current liabilities		—		126,561		114,973		18,609		(882	)		259,261
LONG-TERM DEBT		—		4,322,500		—		—		—			4,322,500
DEFERRED INCOME TAXES		—		361,288		—		—		—			361,288
OTHER NON-CURRENT LIABILITIES		—		38,535		25,833		1,306		—			65,674
Total liabilities		—		4,848,884		140,806		19,915		(882	)		5,008,723
STOCKHOLDERS’ EQUITY		685,369		788,256		6,664,809		273,785		(7,726,850	)		685,369
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	685,369	$	5,637,140	$	6,805,615	$	293,700	$	(7,727,732	)		$5,694,092

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING BALANCE SHEET

AS OF SEPTEMBER 30, 2012

	TransDigm Group		TransDigm Inc.		Subsidiary Guarantors			Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	20,100	$	406,891	$	4,494		$	9,039	$	—		$	440,524
Trade accounts receivable - Net		—		12,261		207,537			17,486		(1,501	)		235,783
Inventories - Net		—		23,410		272,180			25,397		(484	)		320,503
Deferred income taxes		—		29,134		—			—		—			29,134
Prepaid expenses and other		—		9,585		12,626			2,376		—			24,587
Total current assets		20,100		481,281		496,837			54,298		(1,985	)		1,050,531
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		1,198,734		4,720,602		2,055,938			43,745		(8,019,019	)		—
PROPERTY, PLANT AND EQUIPMENT - Net		—		15,685		144,177			12,875		—			172,737
GOODWILL		—		85,680		2,872,483			77,339		—			3,035,502
TRADEMARKS AND TRADE NAMES		—		19,377		416,490			31,747		—			467,614
OTHER INTANGIBLE ASSETS - Net		—		8,151		614,225			33,620		—			655,996
DEBT ISSUE COSTS - Net		—		62,190		—			—		—			62,190
OTHER		—		2,750		(27,249	)		39,546		—			15,047
TOTAL ASSETS	$	1,218,834	$	5,395,716	$	6,572,901		$	293,170	$	(8,021,004	)	$	5,459,617
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt	$	—	$	20,500	$	—		$	—	$	—		$	20,500
Accounts payable		—		10,068		54,054			11,553		(1,497	)		74,178
Accrued liabilities		—		68,808		64,250			6,179		—			139,237
Total current liabilities		—		99,376		118,304			17,732		(1,497	)		233,915
LONG-TERM DEBT		—		3,598,625		—			—		—			3,598,625
DEFERRED INCOME TAXES		—		356,896		—			—		—			356,896
OTHER NON-CURRENT LIABILITIES		—		24,083		26,480			784		—			51,347
Total liabilities		—		4,078,980		144,784			18,516		(1,497	)		4,240,783
STOCKHOLDERS’ EQUITY		1,218,834		1,316,736		6,428,117			274,654		(8,019,507	)		1,218,834
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,218,834	$	5,395,716	$	6,572,901		$	293,170	$	(8,021,004	)	$	5,459,617

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF INCOME

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 30, 2013

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
NET SALES	$	—		$	52,286		$	789,907	$	57,361	$	(3,527	)	$	896,027
COST OF SALES		—			30,361			331,306		39,693		(3,190	)		398,170
GROSS PROFIT		—			21,925			458,601		17,668		(337	)		497,857
SELLING AND ADMINISTRATIVE EXPENSES		—			31,641			70,430		8,553		—			110,624
AMORTIZATION OF INTANGIBLE ASSETS		—			312			19,084		879		—			20,275
INCOME (LOSS) FROM OPERATIONS		—			(10,028	)		369,087		8,236		(337	)		366,958
INTEREST EXPENSE - Net		—			125,152			1,243		575		—			126,970
REFINANCING COSTS		—			30,281			—		—		—			30,281
EQUITY IN INCOME OF SUBSIDIARIES		(142,107	)		(236,038	)		—		—		378,145			—
INCOME BEFORE INCOME TAXES		142,107			70,577			367,844		7,661		(378,482	)		209,707
INCOME TAX PROVISION (BENEFIT)		—			(71,530	)		136,836		2,294		—			67,600
NET INCOME	$	142,107		$	142,107		$	231,008	$	5,367	$	(378,482	)	$	142,107

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF INCOME

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 31, 2012

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
NET SALES	$	—		$	52,136		$	692,146	$	35,029	$	(3,369	)	$	775,942
COST OF SALES		—			30,404			286,659		26,653		(3,369	)		340,347
GROSS PROFIT		—			21,732			405,487		8,376		—			435,595
SELLING AND ADMINISTRATIVE EXPENSES		—			28,330			58,395		4,599		—			91,324
AMORTIZATION OF INTANGIBLE ASSETS		—			312			20,792		674		—			21,778
INCOME (LOSS) FROM OPERATIONS		—			(6,910	)		326,300		3,103		—			322,493
INTEREST EXPENSE - Net		—			100,346			244		771		—			101,361
EQUITY IN INCOME OF SUBSIDIARIES		(146,657	)		(216,157	)		—		—		362,814			—
INCOME BEFORE INCOME TAXES		146,657			108,901			326,056		2,332		(362,814	)		221,132
INCOME TAX PROVISION (BENEFIT)		—			(37,756	)		111,227		1,004		—			74,475
NET INCOME	$	146,657		$	146,657		$	214,829	$	1,328	$	(362,814	)	$	146,657

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 30, 2013

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors			Non- Guarantor Subsidiaries			Eliminations			Total Consolidated
NET CASH PROVIDED BY (USED IN)
OPERATING ACTIVITIES	$	—		$	(55,398	)	$	240,872		$	4,885		$	6,930		$	197,289
INVESTING ACTIVITIES:
Capital expenditures		—			(1,105	)		(14,308	)		(903	)		—			(16,316	)
Acquisition of business, net of cash acquired					(8,501	)		—			—			—			(8,501	)
Cash proceeds from sale of investment		—			10,500			—			—			—			10,500
Cash proceeds from working capital settlement		—			134			—			—			—			134
Net cash provided by (used in) investing activities		—			1,028			(14,308	)		(903	)		—			(14,183	)
FINANCING ACTIVITIES:
Intercompany activities		644,459			(408,158	)		(226,417	)		(2,954	)		(6,930	)		—
Excess tax benefits related to share-based payment arrangements		40,044			—			—			—			—			40,044
Proceeds from exercise of stock options		12,919			—			—			—			—			12,919
Dividends paid		(702,406	)		—			—			—			—			(702,406	)
Proceeds from 2013 credit facility - net		—			2,191,127			—			—			—			2,191,127
Repayment on 2013 credit facility		—			(5,500	)		—			—			—			(5,500	)
Proceeds from 2011 credit facility - net		—			147,360			—			—			—			147,360
Repayment on 2011 credit facility		—			(2,169,125	)		—			—			—			(2,169,125	)
Proceeds from senior subordinated notes due 2020 - net		—			542,000			—			—			—			542,000
Net cash provided by (used in) financing activities		(4,984	)		297,704			(226,417	)		(2,954	)		(6,930	)		56,419
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			(25	)		—			(25	)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		(4,984	)		243,334			147			1,003			—			239,500
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		20,100			406,891			4,494			9,039			—			440,524
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	15,116		$	650,225		$	4,641		$	10,042		$	—		$	680,024

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TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 31, 2012

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors			Non- Guarantor Subsidiaries			Eliminations			Total Consolidated
NET CASH PROVIDED BY (USED IN)
OPERATING ACTIVITIES	$	—		$	(53,599	)	$	215,749		$	2,116		$	696		$	164,962
INVESTING ACTIVITIES:
Capital expenditures		—			(829	)		(8,115	)		(165	)		—			(9,109	)
Acquisition of businesses, net of cash acquired		—			(833,512	)		—			—			—			(833,512	)
Net cash used in investing activities		—			(834,341	)		(8,115	)		(165	)		—			(842,621	)
FINANCING ACTIVITIES:
Intercompany activities		(14,545	)		217,320			(202,440	)		361			(696	)		—
Excess tax benefits related to share-based payment arrangements		24,231			—			—			—			—			24,231
Proceeds from exercise of stock options		7,316			—			—			—			—			7,316
Dividends paid		(3,299	)		—			—			—			—			(3,299	)
Treasury stock purchased		(846	)		—			—			—			—			(846	)
Proceeds from 2011 credit facility-net		—			484,713			—			—			—			484,713
Repayment on 2011 credit facility		—			(9,000	)		—			—			—			(9,000	)
Net cash provided by (used in) financing activities		12,857			693,033			(202,440	)		361			(696	)		503,115
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			(158	)		—			(158	)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		12,857			(194,907	)		5,194			2,154			—			(174,702	)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		5,695			360,074			2,115			8,299			—			376,183
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	18,552		$	165,167		$	7,309		$	10,453		$	—		$	201,481

* * * * *

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion of the Company’s financial condition and results of operations should be read together with TD Group’s consolidated financial statements and the related notes included elsewhere in this Quarterly Report on Form 10-Q. References in this section to “TransDigm,” “the Company,” “we,” “us,” “our,” and similar references refer to TD Group, TransDigm Inc. and TransDigm Inc.’s subsidiaries, unless the context otherwise indicates. The following discussion may contain predictions, estimates and other forward-looking statements that involve a number of risks and uncertainties, including those discussed in this report. These risks could cause our actual results to differ materially from any future performance suggested below.

This Quarterly Report on Form 10-Q includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, in particular, the statements about the Company’s plans, strategies and prospects under this section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Although the Company believes that its plans, intentions and expectations reflected in or suggested by such forward-looking statements are reasonable, the Company can give no assurance that such plans, intentions or expectations will be achieved. Many of the factors affecting these forward-looking statements are outside the control of the Company. Consequently, such forward-looking statements should be regarded solely as the Company’s current plans, estimates and beliefs. The Company does not undertake, and specifically declines, any obligation to publicly release the results of any revisions to these forward-looking statements that may be made to reflect any future events or circumstances after the date of such statements or to reflect the occurrence of anticipated or unanticipated events, except as required by applicable law. All forward-looking statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by the foregoing cautionary statements.

Important factors that could cause actual results to differ materially from the forward-looking statements made in this Quarterly Report on Form 10-Q include but are not limited to: the sensitivity of our business to the number of flight hours that our customers’ planes spend aloft and our customers’ profitability, both of which are affected by general economic conditions; future terrorist attacks; our reliance on certain customers; the U.S. defense budget and risks associated with being a government supplier; failure to maintain government or industry approvals; failure to complete or successfully integrate acquisitions; our substantial indebtedness; potential environmental liabilities; and other factors. Please refer to the other information included in this Quarterly Report on Form 10-Q and to the Annual Report on Form 10-K for additional information regarding the foregoing factors that may affect our business.

Overview

We believe we are a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly all commercial and military aircraft in service today. Our business is well diversified due to the broad range of products we offer to our customers. Some of our more significant product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, , include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, NiCad batteries and chargers, engineered latching and locking devices, rods and locking devices, engineered connectors and elastomers, cockpit security components and systems, specialized cockpit displays, aircraft audio systems, specialized lavatory components, seatbelts and safety restraints, engineered interior surfaces and lighting and control technology. Each of these product offerings is composed of many individual products that are typically customized to meet the needs of a particular aircraft platform or customer.

For the second quarter of fiscal 2013, we generated net sales of $465.6 million and net income of $67.9 million. EBITDA As Defined was $219.3 million, or 47.1% of net sales. See below for certain information regarding EBITDA and EBITDA As Defined, including reconciliations of EBITDA and EBITDA As Defined to net income and net cash provided by operating activities.

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Certain Acquisitions

Aero-Instruments Co., LLC Acquisition

On September 17, 2012, TransDigm Inc. acquired all of the outstanding equity interests in Aero-Instruments Co., LLC (“Aero-Instruments”), for approximately $34.6 million in cash, which includes a purchase price adjustment of $0.1 million received in the first quarter of fiscal 2013. Aero-Instruments designs and manufactures highly engineered air data sensors including pitot probes, pitot-static probes, static pressure ports, angle of attack, temperature sensors and flight test equipment for use primarily in the business jet and helicopter markets. These products fit well with TransDigm’s overall business direction. The Company is in the process of obtaining information to value certain tangible and intangible assets of Aero-Instruments, and therefore the condensed consolidated financial statements at March 30, 2013 reflect a preliminary purchase price allocation for the business.

AmSafe Global Holdings, Inc. Acquisition

On February 15, 2012, TransDigm Inc. acquired all of the outstanding stock of AmSafe Global Holdings, Inc. (“AmSafe”), for approximately $749.7 million in cash, which includes a purchase price adjustment of $0.5 million paid in the third quarter of fiscal 2012. AmSafe is a leading supplier of innovative, highly engineered and proprietary safety and restraint equipment used primarily in the global aerospace industry. These products fit well with TransDigm’s overall business direction. The distribution business acquired as part of AmSafe was sold on August 16, 2012 for approximately $17.8 million in cash, which includes a working capital adjustment of $0.1 million received in the first quarter of fiscal 2013. The equity investment in C-Safe LLC acquired as part of AmSafe was sold in October 2012 for approximately $16.4 million, which consisted of $5.0 million in cash at closing and an $11.4 million short term note receivable, of which $5.5 million was collected in the second quarter of fiscal 2013.

Harco Laboratories Acquisition

On December 9, 2011, TransDigm Inc. acquired all of the outstanding stock of Harco Laboratories, Incorporated (“Harco”), for approximately $83.3 million in cash, which includes a purchase price adjustment of $0.4 million paid in the second quarter of fiscal 2012. Harco designs and manufactures highly engineered thermocouples, sensors, engine cable assemblies and related products for commercial aircraft. These products fit well with TransDigm’s overall business direction.

Non-GAAP Financial Measures

We present below certain financial information based on our EBITDA and EBITDA As Defined. References to “EBITDA” mean earnings before interest, taxes, depreciation and amortization, and references to “EBITDA As Defined” mean EBITDA plus, as applicable for each relevant period, certain adjustments as set forth in the reconciliations of net income to EBITDA and EBITDA As Defined and the reconciliations of net cash provided by operating activities to EBITDA and EBITDA As Defined presented below.

Neither EBITDA nor EBITDA As Defined is a measurement of financial performance under accounting principles generally accepted in the United States of America (“GAAP”). We present EBITDA and EBITDA As Defined because we believe they are useful indicators for evaluating operating performance and liquidity.

Our management believes that EBITDA and EBITDA As Defined are useful as indicators of liquidity because securities analysts, investors, rating agencies and others use EBITDA to evaluate a company’s ability to incur and service debt. In addition, EBITDA As Defined is useful to investors because our revolving credit facility under our senior secured credit facility requires compliance, on a pro forma basis, with a financial covenant that measures the ratio of the amount of our secured indebtedness to the amount of our Consolidated EBITDA defined in the same manner as we define EBITDA As Defined herein. This financial covenant is a material term of our senior secured credit facility as the failure to comply with such financial covenant could result in an event of default in respect of the revolving credit facility (and such an event of default could, in turn, result in an event of default under the indentures governing our 7 ³/₄% Senior Subordinated Notes and 5 ¹/₂% Senior Subordinated Notes).

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In addition to the above, our management uses EBITDA As Defined to review and assess the performance of the management team in connection with employee incentive programs and to prepare its annual budget and financial projections. Moreover, our management uses EBITDA As Defined to evaluate acquisitions.

Although we use EBITDA and EBITDA As Defined as measures to assess the performance of our business and for the other purposes set forth above, the use of these non-GAAP financial measures as analytical tools has limitations, and you should not consider any of them in isolation, or as a substitute for analysis of our results of operations as reported in accordance with GAAP. Some of these limitations are:

• neither EBITDA nor EBITDA As Defined reflects the significant interest expense, or the cash requirements necessary to service interest payments, on our indebtedness;

• although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and neither EBITDA nor EBITDA As Defined reflects any cash requirements for such replacements;

• the omission of the substantial amortization expense associated with our intangible assets further limits the usefulness of EBITDA and EBITDA As Defined;

• neither EBITDA nor EBITDA As Defined includes the payment of taxes, which is a necessary element of our operations; and

• EBITDA As Defined excludes the cash expense we have incurred to integrate acquired businesses into our operations, which is a necessary element of certain of our acquisitions.

Because of these limitations, EBITDA and EBITDA As Defined should not be considered as measures of discretionary cash available to us to invest in the growth of our business. Management compensates for these limitations by not viewing EBITDA or EBITDA As Defined in isolation and specifically by using other GAAP measures, such as net income, net sales and operating profit, to measure our operating performance. Neither EBITDA nor EBITDA As Defined is a measurement of financial performance under GAAP, and neither should be considered as an alternative to net income or cash flow from operations determined in accordance with GAAP. Our calculation of EBITDA and EBITDA As Defined may not be comparable to the calculation of similarly titled measures reported by other companies.

-23-

The following table sets forth a reconciliation of net income to EBITDA and EBITDA As Defined (in thousands):

	Thirteen Week Periods Ended					Twenty-Six Week Periods Ended
	March 30, 2013		March 31, 2012			March 30, 2013		March 31, 2012
	(in thousands)					(in thousands)
Net income	$	67,937	$	81,552		$	142,107	$	146,657
Adjustments:
Depreciation and amortization expense		16,321		15,247			33,773		33,029
Interest expense, net		64,094		52,300			126,970		101,361
Income tax provision		31,800		43,375			67,600		74,475
EBITDA		180,152		192,474			370,450		355,522
Adjustments:
Inventory purchase accounting adjustments(1)		—		5,308			890		8,459
Acquisition integration costs(2)		1,027		832			2,946		3,384
Acquisition transaction-related expenses(3)		681		2,399			1,339		4,148
Other acquisition accounting adjustments		—		(2,792	)		—		(2,792	)
Non-cash compensation costs(4)		7,131		4,887			14,262		8,535
Refinancing costs(5)		30,281		—			30,281		—
EBITDA As Defined	$	219,272	$	203,108		$	420,168	$	377,256

(1) Represents accounting adjustments to inventory associated with acquisitions of businesses and product lines that were charged to cost of sales when the inventory was sold.

(2) Represents costs incurred to integrate acquired businesses and product lines into TD Group’s operations, facility relocation costs and other acquisition-related costs.

(3) Represents transaction-related costs comprising deal fees; legal, financial and tax due diligence expenses; and valuation costs that are required to be expensed as incurred.

(4) Represents the compensation expense recognized by TD Group under our stock option plans.

(5) Represents debt issue costs expensed in conjunction with the refinancing of our 2010 Credit Facility and 2011 Credit Facility in February 2013.

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The following table sets forth a reconciliation of net cash provided by operating activities to EBITDA and EBITDA As Defined (in thousands):

	Twenty-Six Week Period Ended
	March 30,  2013			March 31,  2012
	(in thousands)
Net Cash Provided by Operating Activities	$	197,289		$	164,962
Adjustments:
Changes in assets and liabilities, net of effects from acquisitions of businesses		(4,462	)		1,299
Interest expense, net (1)		120,004			95,620
Income tax provision - current		62,118			77,945
Non-cash equity compensation (2)		(14,262	)		(8,535	)
Excess tax benefit from exercise of stock options		40,044			24,231
Refinancing costs (6)		(30,281	)		—
EBITDA		370,450			355,522
Adjustments:
Inventory purchase accounting adjustments (3)		890			8,459
Acquisition integration costs (4)		2,946			3,384
Acquisition transaction-related expenses (5)		1,339			4,148
Other acquisition related expenses		—			(2,792	)
Stock option expense (2)		14,262			8,535
Refinancing costs (6)		30,281			—
EBITDA As Defined	$	420,168		$	377,256

(1) Represents interest expense excluding the amortization of debt issue costs and note premium and discount.

(2) Represents the compensation expense recognized by TD Group under our stock option plans.

(3) Represents accounting adjustments to inventory associated with acquisitions of businesses and product lines that were charged to cost of sales when the inventory was sold.

(4) Represents costs incurred to integrate acquired businesses and product lines into TD Group’s operations, facility relocation costs and other acquisition-related costs.

(5) Represents transaction-related costs comprising deal fees; legal, financial and tax due diligence expenses; and valuation costs that are required to be expensed as incurred.

(6) Represents debt issue costs expensed in conjunction with the refinancing of our 2010 Credit Facility and 2011 Credit Facility in February 2013.

Critical Accounting Policies

Our consolidated financial statements have been prepared in accordance with GAAP, which often requires the judgment of management in the selection and application of certain accounting principles and methods. Management believes that the quality and reasonableness of our most critical policies enable the fair presentation of our financial position and results of operations. However, investors are cautioned that the sensitivity of financial statements to these methods, assumptions and estimates could create materially different results under different conditions or using different assumptions.

A summary of our significant accounting policies and estimates is included in the Annual Report on Form 10-K for the year ended September 30, 2012. There have been no significant changes to our critical accounting policies during the twenty-six week period ended March 30, 2013.

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Results of Operations

The following table sets forth, for the periods indicated, certain operating data of the Company, including presentation of the amounts as a percentage of net sales (amounts in thousands):

	Thirteen Week Periods Ended
	March 30, 2013		% of Sales			March 31, 2012		% of Sales
Net sales	$	465,609		100.0	%	$	423,469		100.0	%
Cost of sales		206,299		44.3			187,429		44.3
Selling and administrative expenses		55,463		11.9			49,474		11.6
Amortization of intangible assets		9,735		2.1			9,339		2.2
Income from operations		194,112		41.7			177,227		41.9
Interest expense, net		64,094		13.8			52,300		12.4
Refinancing costs		30,281		6.5			—		—
Income tax provision		31,800		6.8			43,375		10.2
Net income	$	67,937		14.6	%	$	81,552		19.3	%

	Twenty-Six Week Periods Ended
	March 30, 2013		% of Sales			March 31, 2012		% of Sales
Net sales	$	896,027		100.0	%	$	775,942		100.0	%
Cost of sales		398,170		44.4			340,347		43.9
Selling and administrative expenses		110,624		12.3			91,324		11.8
Amortization of intangible assets		20,275		2.3			21,778		2.8
Income from operations		366,958		41.0			322,493		41.6
Interest expense, net		126,970		14.2			101,361		13.1
Refinancing costs		30,281		3.4			—		—
Income tax provision		67,600		7.5			74,475		9.6
Net income	$	142,107		15.9	%	$	146,657		18.9	%

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Changes in Results of Operations

Thirteen week period ended March 30, 2013 compared with the thirteen week period ended March 31, 2012.

• Net Sales. Net organic sales, acquisition sales and sales of the AmSafe distribution business, which was acquired as part of AmSafe on February 15, 2012 and sold on August 16, 2012, and the related dollar and percentage changes for the thirteen week periods ended March 30, 2013 and March 31, 2012 were as follows (amounts in millions):

	Thirteen Week Periods Ended				Change			% Change Total  Sales
	March 30, 2013		March 31, 2012
Organic sales	$	425.9	$	418.6	$	7.3			1.7	%
Acquisition sales		39.7		—		39.7			9.4	%
AmSafe distribution sales		—		4.9		(4.9	)		-1.1	%
	$	465.6	$	423.5	$	42.1			10.0	%

Acquisition sales represent sales of acquired businesses for the period up to one year subsequent to their acquisition dates. The amount of acquisition sales shown in the table above resulted from the acquisition in fiscal 2013 and Aero-Instruments and AmSafe in fiscal 2012.

The organic sales growth was primarily due to an increase of $8.3 million, or a 6.4% increase in commercial OEM sales and an increase of $6.1 million, or a 6.2% increase in defense sales, for the quarter ended March 30, 2013 compared to the quarter ended March 31, 2012. Commercial aftermarket sales decreased by $3.4 million between periods.

Commercial OEM sales for the quarter ended March 31, 2012 were favorably impacted by retroactive contract pricing adjustments of approximately $6 million.

• Cost of Sales and Gross Profit . Cost of sales increased by $18.9 million, or 10.1%, to $206.3 million for the quarter ended March 30, 2013 compared to $187.4 million for the quarter ended March 31, 2012. Cost of sales and the related percentage of total sales for the thirteen week periods ended March 30, 2013 and March 31, 2012 were as follows (amounts in millions):

	Thirteen Week Periods Ended						Change			% Change
	March 30, 2013			March 31, 2012
Cost of sales - excluding acquisition-related costs below	$	205.3		$	181.3		$	24.0			13.2	%
% of total sales		44.1	%		42.8	%
Inventory purchase accounting adjustments		—			5.3			(5.3	)		-100.0	%
% of total sales		0.0	%		1.3	%
Acquisition integration costs		1.0			0.8			0.2			25.0	%
% of total sales		0.2	%		0.2	%
Total cost of sales	$	206.3		$	187.4		$	18.9			10.1	%
% of total sales		44.3	%		44.3	%
Gross profit	$	259.3		$	236.0		$	23.3			9.9	%
Gross profit percentage		55.7	%		55.7	%

The increase in the dollar amount of cost of sales during the thirteen week period ended March 30, 2013 was primarily due to increased volume associated with the sales from acquisitions and organic sales growth offset by lower acquisition-related costs as shown in the table above.

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Gross profit as a percentage of sales was 55.7% for both the thirteen week periods ended March 30, 2013 and March 31, 2012. The dollar amount of gross profit increased by $23.3 million, or 9.9%, for the quarter ended March 30, 2013 compared to the comparable quarter last year due to the following items:

• Gross profit on the sales from the acquisitions indicated above (excluding acquisition-related costs) was approximately $18 million for the quarter ended March 30, 2013, which represented gross profit of approximately 46% of the acquisition sales.

• Impact of lower inventory purchase accounting adjustments and acquisition integration costs charged to cost of sales of approximately $5 million.

• Organic sales growth described above, application of our three core value-driven operating strategies (obtaining profitable new business, continually improving our cost structure, and providing highly engineered value-added products to customers), and positive leverage on our fixed overhead costs spread over a higher production volume, partially offset by unfavorable OEM versus aftermarket sales mix, resulted in a net increase in gross profit of approximately $6 million for the quarter ended March 30, 2013.

• The gross profit increase described above was partially offset by the impact of an OEM retroactive contract pricing adjustments of approximately $6 million in the comparable quarter of the prior year.

• Selling and Administrative Expenses. Selling and administrative expenses increased by $6.0 million to $55.5 million, or 11.9% of sales, for the thirteen week period ended March 30, 2013 from $49.5 million, or 11.6% of sales, for the thirteen week period ended March 31, 2012. Selling and administrative expenses and the related percentage of total sales for the thirteen week periods ended March 30, 2013 and March 31, 2012 were as follows (amounts in millions):

	Thirteen Week Periods Ended
	March 30, 2013			March 31, 2012			Change			% Change
Selling and administrative expenses - excluding costs below	$	48.7		$	45.7		$	3.0			6.6	%
% of total sales		10.5	%		10.8	%
Stock compensation expense		6.1			4.2			1.9			45.2	%
% of total sales		1.3	%		1.0	%
Acquisition related expenses		0.7			2.4			(1.7	)		-70.8	%
% of total sales		0.1	%		0.5	%
Other acquisition related expenses		—			(2.8	)		2.8			-100.0	%
% of total sales		0.0	%		-0.7	%
Total selling and administrative expenses	$	55.5		$	49.5		$	6.0			12.1	%
% of total sales		11.9	%		11.6	%

The increase in the dollar amount of selling and administrative expenses during the quarter ended March 30, 2013 is primarily due to higher selling and administrative expenses relating to recent acquisitions of approximately $5 million, which was approximately 14% of the acquisition sales. The increase in stock compensation expense is primarily due to an increased level of employees that participate in the Company’s stock compensation plans as a result of acquisitions and also due to higher grant date fair values for our stock options.

• Amortization of Intangibles. Amortization of intangibles increased to $9.7 million for the quarter ended March 30, 2013 from $9.3 million for the comparable quarter last year. The net increase of $0.4 million was primarily due to increased amortization expense related to the additional identifiable intangible assets recognized in connection with acquisitions during the last twelve months partially offset by order backlog relating to prior acquisitions becoming fully amortized.

• Refinancing Costs. Refinancing costs of $30.3 million were recorded during the quarter ended March 30, 2013 representing debt issue costs expensed in conjunction with the refinancing of our 2010 Credit Facility and 2011 Credit Facility in February 2013.

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• Interest Expense-net. Interest expense-net includes interest on outstanding borrowings, amortization of debt issue costs and revolving credit facility fees offset by interest income. Interest expense-net increased $11.8 million, or 22.6%, to $64.1 million for the quarter ended March 30, 2013 from $52.3 million for the comparable quarter last year. The net increase in interest expense-net was primarily due to an increase in the weighted average level of outstanding borrowings, which was approximately $4.33 billion for the quarter ended March 30, 2013 and approximately $3.39 billion for the quarter ended March 31, 2012. The increase in borrowings was due to the additional $500 million and $150 million term loan facilities under the amendments to our 2011 Credit Facility which occurred in February 2012 and October 2012, respectively, additional borrowings of $36.4 million relating to our refinancing of the 2011 Credit Facility in February 2013, and the issuance in October 2012 of our $550 million 5 ¹/₂% Senior Subordinated Notes due 2020.

• Income Taxes. Income tax expense as a percentage of income before income taxes was approximately 31.9% for the quarter ended March 30, 2013 compared to 34.7% for the quarter ended March 30, 2012. The lower effective tax rate for the thirteen week period ended March 30, 2013 was primarily due to the retroactive reinstatement of the research and development tax credit and an increased benefit from the domestic manufacturing deduction.

• Net Income. Net income decreased $13.6 million, or 16.7%, to $67.9 million for the quarter ended March 30, 2013 compared to net income of $81.5 million for the quarter ended March 31, 2012, primarily as a result of the factors referred to above.

• Earnings per Share. The basic and diluted earnings per share were $1.25 for the quarter ended March 30, 2013 and $1.51 per share for the quarter ended March 31, 2012. The decrease in earnings per share of $1.51 per share to $1.25 per share is a result of the factors referred to above.

Twenty-six week period ended March 30, 2013 compared with the twenty-six week period ended March 31, 2012.

• Net Sales. Net organic sales, acquisition sales and sales of the AmSafe distribution business, which was acquired as part of AmSafe on February 15, 2012 and sold on August 16, 2012, and the related dollar and percentage changes for the twenty-six week periods ended March 30, 2013 and March 31, 2012 were as follows (amounts in millions):

	Twenty-Six Week Periods Ended							% Change Total  Sales
	March 30, 2013		March 31, 2012		Change
Organic sales	$	783.3	$	771.0	$	12.3			1.6	%
Acquisition sales		112.7		—		112.7			14.5	%
AmSafe distribution sales		—		4.9		(4.9	)		-0.6	%
	$	896.0	$	775.9	$	120.1			15.5	%

Acquisition sales represent sales of acquired businesses for the period up to one year subsequent to their acquisition dates. The amount of acquisition sales shown in the table above resulted from the acquisition in fiscal 2013 and Aero-Instruments, AmSafe and Harco in fiscal 2012.

The organic sales growth was primarily due to an increase of $12.4 million, or a 5.3% increase in commercial OEM sales and an increase of $9.4 million, or a 5.0% increase in defense sales, for the twenty-six week period ended March 30, 2013 compared to the twenty-six week period ended March 31, 2012. Commercial aftermarket sales decreased by $3.6 million.

Commercial OEM sales for the twenty-six week period ended March 31, 2012 were favorably impacted by retroactive contract pricing adjustments of approximately $11 million.

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• Cost of Sales and Gross Profit . Cost of sales increased by $57.8 million, or 17.0%, to $398.2 million for the twenty-six week ended March 30, 2013 compared to $340.3 million for the twenty-six week period ended March 31, 2012. Cost of sales and the related percentage of total sales for the twenty-six week periods ended March 30, 2013 and March 31, 2012 were as follows (amounts in millions):

	Twenty-Six Week Periods Ended
	March 30, 2013			March 31, 2012			Change			% Change
Cost of sales - excluding acquisition-related costs below	$	394.5		$	330.0		$	64.5			19.5	%
% of total sales		44.0	%		42.6	%
Inventory purchase accounting adjustments		0.9			8.5			(7.6	)		-89.4	%
% of total sales		0.1	%		1.1	%
Acquisition integration costs		2.8			1.8			1.0			55.6	%
% of total sales		0.3	%		0.2	%
Total cost of sales	$	398.2		$	340.3		$	57.9			17.0	%
% of total sales		44.4	%		43.9	%
Gross profit	$	497.9		$	435.6		$	62.3			14.3	%
Gross profit percentage		55.6	%		56.1	%

The increase in the dollar amount of cost of sales during the twenty-six week period ended March 30, 2013 was primarily due to increased volume associated with the sales from acquisitions and organic sales growth offset by lower acquisition-related costs as shown in the table above.

Gross profit as a percentage of sales decreased by 0.5 percentage points to 55.6% for the twenty-six week period ended March 30, 2013 from 56.1% for the twenty-six week period ended March 31, 2012. The dollar amount of gross profit increased by $62.3 million, or 14.3%, for the twenty-six week period ended March 30, 2013 compared to the comparable period last year due to the following items:

• Gross profit on the sales from the acquisitions indicated above (excluding acquisition-related costs) was approximately $53 million for the twenty-six week period ended March 30, 2013, which represented gross profit of approximately 47% of the acquisition sales.

• Impact of lower inventory purchase accounting adjustments and acquisition integration costs charged to cost of sales of approximately $7 million.

• Organic sales growth described above, application of our three core value-driven operating strategies (obtaining profitable new business, continually improving our cost structure, and providing highly engineered value-added products to customers), and positive leverage on our fixed overhead costs spread over a higher production volume, partially offset by unfavorable OEM versus aftermarket sales mix, resulted in a net increase in gross profit of approximately $13 million for the twenty-six week period ended March 30, 2013.

• The gross profit increase described above was partially offset by the impact of an OEM retroactive contract pricing adjustment of approximately $11 million in the comparable period of the prior year.

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• Selling and Administrative Expenses. Selling and administrative expenses increased by $19.3 million to $110.6 million, or 12.3% of sales, for the twenty-six week period ended March 30, 2013 from $91.3 million, or 11.8% of sales, for the twenty-six week period ended March 31, 2012. Selling and administrative expenses and the related percentage of total sales for the twenty-six week periods ended March 30, 2013 and March 31, 2012 were as follows (amounts in millions):

	Twenty-Six Week Periods Ended
	March 30, 2013			March 31, 2012			Change			% Change
Selling and administrative expenses - excluding costs below	$	97.0		$	81.1		$	15.9			19.6	%
% of total sales		10.8	%		10.5	%
Stock compensation expense		12.1			7.3			4.8			65.8	%
% of total sales		1.4	%		0.9	%
Acquisition related expenses		1.5			5.7			(4.2	)		-73.7	%
% of total sales		0.1	%		0.8	%
Other acquisition related expenses		—			(2.8	)		2.8			-100.0	%
% of total sales		0.0	%		-0.4	%
Total selling and administrative expenses	$	110.6		$	91.3		$	19.3			21.1	%
% of total sales		12.3	%		11.8	%

The increase in the dollar amount of selling and administrative expenses during the twenty-six week period ended March 30, 2013 is primarily due to higher selling and administrative expenses relating to recent acquisitions of approximately $17 million, which was approximately 15% of the acquisition sales. The increase in stock compensation expense is primarily due to an increased level of employees that participate in the Company’s stock compensation plans as a result of acquisitions and also due to higher grant date fair values for our stock options.

• Amortization of Intangibles. Amortization of intangibles decreased to $20.3 million for the twenty-six week period ended March 30, 2013 from $21.8 million for the comparable period last year. The net decrease of $1.5 million was primarily due to order backlog relating to prior acquisitions becoming fully amortized offset by amortization expense related to the additional identifiable intangible assets recognized in connection with acquisitions during the last twelve months.

• Refinancing Costs. Refinancing costs of $30.3 million were recorded during the twenty-six week period ended March 30, 2013 representing debt issue costs expensed in conjunction with the refinancing of our 2010 Credit Facility and 2011 Credit Facility in February 2013.

• Interest Expense-net. Interest expense-net includes interest on outstanding borrowings, amortization of debt issue costs and revolving credit facility fees offset by interest income. Interest expense-net increased $25.6 million, or 25.3%, to $127.0 million for the twenty-six week period ended March 30, 2013 from $101.4 million for the comparable period last year. The net increase in interest expense-net was primarily due to an increase in the weighted average level of outstanding borrowings, which was approximately $4.27 billion for the twenty-six week period ended March 30, 2013 and approximately $3.26 billion for the twenty-six week period ended March 31, 2012. The increase in borrowings was due to the additional $500 million and $150 million term loan facilities under the amendments to our 2011 Credit Facility which occurred in February 2012 and October 2012, respectively, additional borrowings of $36.4 million relating to our refinancing of the 2011 Credit Facility in February 2013, and the issuance in October 2012 of our $550 million 5 ¹/₂% Senior Subordinated Notes due 2020. The weighted average interest rate on total outstanding borrowings at March 30, 2013 was 5.5%.

• Income Taxes. Income tax expense as a percentage of income before income taxes was approximately 32.2% for the twenty-six week period ended March 30, 2013 compared to 33.7% for the twenty-six week period ended March 30, 2012. The lower effective tax rate for the twenty-six week period ended March 30, 2013 was primarily due to the retroactive reinstatement of the research and development tax credit and an increased benefit from the domestic manufacturing deduction.

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• Net Income. Net income decreased $4.6 million, or 3.1%, to $142.1 million for the twenty-six week period ended March 30, 2013 compared to net income of $146.7 million for the twenty-six week period ended March 31, 2012, primarily as a result of the factors referred to above.

• Earnings per Share. The basic and diluted earnings per share were $1.91 for the twenty-six week period ended March 30, 2013 and $2.66 per share for the twenty-six week period ended March 31, 2012. Net income for the twenty-six week period ended March 30, 2013 of $142.1 million was decreased by an allocation of dividends on participating securities of $38.1 million, or $0.70 per share, resulting in net income available to common shareholders of $104.0 million. Net income for the twenty-six week period ended March 31, 2012 of $146.7 million was decreased by an allocation of dividends on participating securities of $3.3 million, or $0.06 per share, resulting in net income available to common shareholders of $143.4 million. The decrease in earnings per share of $2.66 per share to $1.91 per share is a result of the factors referred to above.

Backlog

As of March 30, 2013, the Company estimated its sales order backlog at $895 million compared to an estimated sales order backlog of $845 million as of March 31, 2012. The increase in backlog is primarily due to the acquisitions, totaling approximately $6 million, and an increase in orders across existing OEM product lines and to a lesser extent the aftermarket. The majority of the purchase orders outstanding as of March 30, 2013 are scheduled for delivery within the next twelve months. Purchase orders may be subject to cancellation or deferral by the customer prior to shipment. The level of unfilled purchase orders at any given date during the year will be materially affected by the timing of the Company’s receipt of purchase orders and the speed with which those orders are filled. Accordingly, the Company’s backlog as of March 30, 2013 may not necessarily represent the actual amount of shipments or sales for any future period.

Foreign Operations

Although we manufacture a significant portion of our products in the United States, we manufacture some products in Belgium, China, Malaysia, Mexico, Sri Lanka and the United Kingdom. We sell our products in the United States as well as in foreign countries. Although the majority of sales of our products are made to customers including distributors located in the United States, our products are ultimately sold to and used by customers, including airlines and other end users of aircraft, throughout the world. A number of risks inherent in international operations could have a material adverse effect on our results of operations, including currency fluctuations, difficulties in staffing and managing multi-national operations, general economic and political uncertainties and potential for social unrest in countries in which we operate, limitations on our ability to enforce legal rights and remedies, restrictions on the repatriation of funds, change in trade policies, tariff regulation, difficulties in obtaining export and import licenses and the risk of government financed competition.

There can be no assurance that foreign governments will not adopt regulations or take other action that would have a direct or indirect adverse impact on the business or market opportunities of the Company within such governments’ countries. Furthermore, there can be no assurance that the political, cultural and economic climate outside the United States will be favorable to our operations and growth strategy.

Liquidity and Capital Resources

Operating Activities. The Company generated $197.3 million of net cash from operating activities during the twenty-six week period ended March 30, 2013 compared to $165.0 million during the twenty-six week period ended March 31, 2012. The net increase of $32.3 million was due primarily to an increase in income from operations and lower income tax payments offset by higher interest payments during the period.

Investing Activities. Net cash used in investing activities was $14.2 million during the twenty-six week period ended March 30, 2013 consisting primarily of the acquisition and capital expenditures of $24.8 million offset by the cash proceeds on the sale of our equity investment in C-Safe LLC of $10.5 million and cash proceeds from working capital settlement of $0.1 million. Net cash used in investing activities was $842.6 million during the twenty-six week period ended March 31, 2012 consisting primarily of the acquisition of AmSafe and Harco and capital expenditures of $9.1 million.

Financing Activities. Net cash provided by financing activities during the twenty-six week period ended March 30, 2013 was $56.4 million, which comprised $2,191.1 million of net proceeds from our 2013 Credit Facility, $147.4 million of additional net proceeds from the Amendment under our 2011 Credit Facility, $542.0 million of net proceeds from our 5 ¹/₂% Senior Subordinated Notes dues 2020 and $52.9 million of cash for tax benefits related to share-based payment arrangements and from the exercise of stock options offset by $5.5 million repayment on the 2013 Credit Facility, the repayment of our 2011 Credit Facility of $2,169.1 million and $702.4 million of dividend and dividend equivalent payments.

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Net cash provided by financing activities during the twenty-six week period ended March 31, 2012 was $503.1 million, which comprised $484.7 million of additional net proceeds from the Amendment under our 2011 Credit Facility and $31.5 million of cash for tax benefits related to share-based payment arrangements and from the exercise of stock options offset by $9.0 million repayment on our 2011 Credit Facility, $3.3 million of dividend equivalent payments and $0.8 million of treasury stock purchased.

Description of Senior Secured Credit Facilities and Indentures

Senior Secured Credit Facilities

In December 2010, TransDigm entered into a senior secured credit facility, which consisted of a $1.55 billion term loan facility and a $245 million revolving credit facility (collectively, the “2010 Credit Facility”). The proceeds of the term loan were used to pay the purchase price of and related transaction expenses associated with an acquisition and repay a portion of the amounts outstanding under the previous senior secured credit facility.

On February 14, 2011, TransDigm Inc. entered into a senior secured credit facility which provided for $1.55 billion term loan facility (the “2011 Credit Facility”), which was fully drawn on February 14, 2011. The 2011 Credit Facility replaced the term loan under the 2010 Credit Facility and modified certain terms of the original agreement including extending the maturity date of the term loan and modifying the interest rate provisions.

On March 25, 2011, TransDigm entered into Amendment No. 1 to the 2010 Credit Facility. The amendment provided for a modification to certain terms of the permitted indebtedness covenant contained in the 2010 Credit Facility to modify the requirements for incurring certain additional senior indebtedness.

On February 15, 2012, TransDigm entered into Amendment No. 1 and an Incremental Term Loan Assumption Agreement to the 2011 Credit Facility. The amendment provides for an additional term loan facility in the aggregate principal amount of $500 million. The additional term loan facility was fully drawn on February 15, 2012. The proceeds of the additional term loan facility were used to pay a portion of the purchase price of and related transaction expenses associated with the acquisition of AmSafe. Also on February 15, 2012 TransDigm entered into an Incremental Revolving Credit Assumption Agreement (the “Assumption Agreement”) to the 2010 Credit Facility, as amended. The Assumption Agreement provided for additional revolving commitments to TransDigm in an aggregate principal amount of $65 million, which resulted in a total revolving credit amount of $310 million.

On October 9, 2012, TransDigm entered into Amendment No. 2 to the 2010 Credit Facility. The amendment provided for a modification to the restricted payment covenant to permit a special dividend in an amount not to exceed $850 million and a modification to the financial covenant ratios in its 2011 Credit Facility. Also on October 9, 2012, TransDigm entered into Amendment No. 2 and an Incremental Term Loan Assumption Agreement to the 2011 Credit Facility. The amendment provided for an additional term loan facility in the aggregate principal amount of $150 million. The additional term loan facility was fully drawn on October 15, 2012.

On February 28, 2013, TransDigm Inc. entered into an Amendment and Restatement Agreement in which TransDigm amended and restated its 2010 Credit Facility and 2011 Credit Facility. The Amendment and Restatement Agreement provides for a $2,200 million new Term Loan Facility, which was fully drawn on February 28, 2013, and a $310 million Revolving Credit Facility (together with the Term Loan Facility, the “2013 Credit Facility”).

The proceeds of the Term Loan Facility were used to repay in full the outstanding term loans under the 2011 Credit Facility and the related transaction expenses associated therewith. The Term Loan Facility consists of two tranches of term loans—tranche B term loans and tranche C term loans, and the Revolving Credit Facility consists of two tranches—revolving A commitments and revolving B commitments. The tranche B term loans consist of $500 million in the aggregate and the tranche C term loans consist of $1,700 million in the aggregate. The tranche B term loans mature on February 14, 2017 and the tranche C term loans mature on February 28, 2020. The Term Loan Facility requires quarterly principal payments of $5.5 million which began on March 28, 2013.

The revolving A commitments consist of $32 million in the aggregate and the revolving B commitments consist of $278 million in the aggregate. The revolving A commitments mature on December 6, 2015 and the revolving B commitments mature on February 28, 2018. At March 30, 2013, the Company had $6.7 million letters of credit outstanding and $303.3 million of borrowings available under the 2013 Credit Facility.

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The interest rates per annum applicable to the loans under the 2013 Credit Facility will be, at TransDigm’s option, equal to either an alternate base rate or an adjusted LIBO rate for one, two, three or six-month (or to the extent agreed to by each relevant lender, nine or twelve-month) interest periods chosen by TransDigm, in each case plus an applicable margin percentage. The adjusted LIBO rate is subject to a floor of .75%. At March 30, 2013, applicable interest rate on the tranche B term loan was 3.50% and the tranche C term loan was 3.75%.

At March 30, 2013, three forward-starting interest rate swap agreements were in place to swap variable rates on the 2013 Credit Facility for a fixed rate based on an aggregate notional amount of $353 million. These interest rate swap agreements converted the variable interest rate on the aggregate notional amount of the 2013 Credit Facility to a fixed rate of 5.17% (2.17% plus the 3% margin percentage) through June 30, 2015.

All of the indebtedness outstanding under the 2013 Credit Facility is guaranteed by TD Group and all of TransDigm’s current and future domestic restricted subsidiaries (other than immaterial subsidiaries). In addition, the obligations of TransDigm and the guarantors under the 2013 Credit Facility are secured ratably in accordance with each lender’s respective revolving and term loan commitments by a first priority security interest in substantially all of the existing and future property and assets, including inventory, equipment, general intangibles, intellectual property, investment property and other personal property (but excluding leasehold interests and certain other assets) of TransDigm and its existing and future domestic restricted subsidiaries (other than immaterial subsidiaries), and a first priority pledge of the capital stock of TransDigm and its subsidiaries (other than foreign subsidiaries and certain domestic subsidiaries, of which 65% of the voting capital stock is pledged).

The term loan facility requires mandatory prepayments of principal based on certain percentages of Excess Cash Flow (as defined in the 2013 Credit Facility), commencing 90 days after the end of each fiscal year, commencing with the fiscal year ending September 30, 2014, subject to certain exceptions. In addition, subject to certain exceptions (including, with respect to asset sales, the reinvestment in productive assets), TransDigm will be required to prepay the loans outstanding under the term loan facility at 100% of the principal amount thereof, plus accrued and unpaid interest, with the net cash proceeds of certain asset sales and issuance or incurrence of certain indebtedness. In addition, if, prior to February 28, 2014, the principal amount of the term loans are (i) prepaid substantially concurrently with the incurrence by TD Group, TransDigm or any its subsidiaries of new bank loans that have an effective yield lower than the yield in effect on the term loans so prepaid or (ii) received by a lender due to a mandatory assignment following the failure of such lender to consent to an amendment of the 2013 Credit Facility that has the effect of reducing the effective interest rate with respect to the term loans, such prepayment or receipt shall be accompanied by a premium of 1.0%.

The 2013 Credit Facility contains certain covenants that limit the ability of TD Group, TransDigm and TransDigm’s restricted subsidiaries to, among other things: (i) incur or guarantee additional indebtedness or issue preferred stock; (ii) pay distributions on, redeem or repurchase capital stock or redeem or repurchase subordinated debt; (iii) make investments; (iv) sell assets; (v) enter into agreements that restrict distributions or other payments from restricted subsidiaries to TransDigm; (vi) incur or suffer to exist liens securing indebtedness; (vii) consolidate, merge or transfer all or substantially all of their assets; and (viii) engage in transactions with affiliates.

The Company recorded refinancing costs of $30.3 million during the thirteen week period ended March 30, 2013 representing debt issue costs expensed in conjunction with the refinancing of our 2010 Credit Facility and 2011 Credit Facility.

Indentures

In December 2010, TransDigm Inc. issued $1.6 billion in aggregate principal amount of its 7³/₄% Senior Subordinated Notes due 2018 (the “2018 Notes”) at an issue price of 100% of the principal amount. The 2018 Notes represent unsecured obligations of TransDigm Inc. ranking subordinate to TransDigm Inc.’s senior debt, as defined in the Indenture governing the 2018 Notes. Such notes do not require principal payments prior to their maturity in December 2018. Interest under the 2018 Notes is payable semi-annually. TransDigm utilized a portion of the proceeds from the 2018 Notes to repurchase its 7³/ ₄% senior subordinated notes due 2014.

In October 2012, TransDigm Inc. issued $550 million in aggregate principal amount of its 5¹/₂% Senior Subordinated Notes due 2020 (“2020 Notes”) at an issue price of 100% of the principal amount. The 2020 Notes represent unsecured obligations of TransDigm Inc. ranking subordinate to TransDigm Inc.’s senior debt, as defined in the Indenture governing the 2020 Notes. Such notes do not require principal payments prior to their maturity in October 2020. Interest under the 2020 Notes is payable semi-annually.

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Certain Restrictive Covenants in Our Debt Documents

The credit facilities and the Indentures contain restrictive covenants that, among other things, limit the incurrence of additional indebtedness, the payment of dividends, transactions with affiliates, asset sales, acquisitions, mergers and consolidations, liens and encumbrances, and prepayments of other indebtedness. A breach of any of the covenants or an inability to comply with the required leverage ratio could result in a default under the credit facilities or the Indentures. If any such default occurs, the lenders under the credit facilities and the holders of the 2018 Notes and 2020 Notes may elect to declare all outstanding borrowings, together with accrued interest and other amounts payable thereunder, to be immediately due and payable. The lenders under the credit facilities also have the right in these circumstances to terminate any commitments they have to provide further borrowings. In addition, following an event of default under the credit facilities, the lenders thereunder will have the right to proceed against the collateral granted to them to secure the debt, which includes our available cash, and they will also have the right to prevent us from making debt service payments on the 2018 Notes and 2020 Notes.

Stock Repurchase Program

On August 22, 2011 we announced a program permitting us to repurchase a portion of our outstanding shares not to exceed $100 million in the aggregate. At March 30, 2013, the Company had repurchased 11,300 shares of its common stock at a gross cost of approximately $0.8 million at a weighted-average price per share of $74.87. No repurchases were made under the program during the quarter ended March 30, 2013.

Recent Accounting Pronouncement

In June 2011, the Financial Accounting Standards Board (“FASB”) issued authoritative accounting guidance included in Accounting Standards Codification (“ASC”) Topic 220, “Comprehensive Income.” This guidance eliminates the option to report other comprehensive income and its components in the statement of changes in equity. Companies can elect to present items of net income and other comprehensive income in one continuous statement or in two separate, but consecutive, statements. The Company adopted the presentation guidance during the first quarter of fiscal 2013 and has elected to present two separate consecutive statements.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

Our main exposure to market risk relates to interest rates. Our financial instruments that are subject to interest rate risk principally include fixed-rate and floating-rate long-term debt. At March 30, 2013, we had borrowings under our 2013 Credit Facility of $2.19 billion that were subject to interest rate risk. Borrowings under our 2013 Credit Facility bear interest, at our option, at a rate equal to either an alternate base rate or an adjusted LIBO rate for a one-, two-, three- or six-month (or to the extent available to each lender, nine- or twelve-month) interest period chosen by us, in each case, plus an applicable margin percentage. Accordingly, the Company’s cash flows and earnings will be exposed to the market risk of interest rate changes resulting from variable rate borrowings under our 2013 Credit Facility. The effect of a hypothetical one percentage point increase in interest rates would increase the annual interest costs under our 2013 Credit Facility by approximately $21.9 million based on the amount of outstanding borrowings at March 30, 2013. The weighted average interest rate on the $2.19 billion of borrowings under our 2013 Credit Facility on March 30, 2012 was 3.9%.

At March 30, 2013, three forward-starting interest rate swap agreements were in place to swap variable rates on the 2013 Credit Facility for a fixed rate based on an aggregate notional amount of $353 million. These interest rate swap agreements converted the variable interest rate on the aggregate notional amount of the 2013 Credit Facility to a fixed rate of 5.17% (2.17% plus the 3% margin percentage) through June 30, 2015.

The fair value of the $2.19 billion aggregate principal amount of borrowings under our 2013 Credit Facility is exposed to the market risk of interest rates. The estimated fair value of such term loans approximated $2.22 billion at March 30, 2013 based upon information provided to the Company from its agent under the credit facility. The fair value of the $1.60 billion 7³/ ₄% Senior Subordinated Notes due 2018 and our $0.55 billion 5 ¹/₂% Senior Subordinated Notes due 2012 are exposed to the market risk of interest rate changes. The estimated fair value of the 2018 Notes approximated $1.75 billion and the fair value of the 2020 Notes approximated $0.57 billion at March 30, 2013 based upon quoted market rates.

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ITEM 4. CONTROLS AND PROCEDURES

As of March 30, 2013, TD Group carried out an evaluation, under the supervision and with the participation of TD Group’s management, including its Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Financial and Accounting Officer), of the effectiveness of the design and operation of TD Group’s disclosure controls and procedures. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that TD Group’s disclosure controls and procedures are effective to ensure that information required to be disclosed by TD Group in the reports it files or submits under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported, within the time periods specified by the Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to TD Group’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, TD Group’s management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in designing and evaluating the controls and procedures. There have been no significant changes in TD Group’s internal controls or other factors that could significantly affect the internal controls subsequent to the date of TD Group’s evaluations.

Changes in Internal Control over Financial Reporting

There have been no changes in TD Group’s internal control over financial reporting that occurred during the quarter ended March 30, 2013 that have materially affected, or are reasonably likely to materially affect, TD Group’s internal control over financial reporting.

PART II: OTHER INFORMATION

ITEM 1A. RISK FACTORS

In addition to the other information set forth in this report, you should carefully consider the risk factors disclosed in Item 1A of our Annual Report on Form 10-K for the fiscal year ended September 30, 2012. There have been no material changes to the risk factors set forth therein.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS: PURCHASES OF EQUITY SECURITIES BY THE ISSUER

On August 22, 2011, the Board of Directors authorized a common share repurchase program, which was announced on August 23, 2011. Under the terms of the program, the Company may purchase up to a maximum aggregate value of $100 million of its shares of common stock. During the quarter ended March 30, 2013, the Company did not repurchase any shares under the program.

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ITEM 6. EXHIBITS

10.1	Amendment and Restatement Agreement, dated as of February 28, 2013, among TransDigm Inc., TransDigm Group Incorporated., Credit Suisse AG, as administrative agent and collateral agent, and the other agents and lenders listed therein. (Incorporated by reference to Form 8-K filed March 5, 2013)
31.1	Certification by Principal Executive Officer of TransDigm Group Incorporated pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification by Principal Financial Officer of TransDigm Group Incorporated pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification by Principal Executive Officer of TransDigm Group Incorporated pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification by Principal Financial Officer of TransDigm Group Incorporated pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Financial Statements and Notes to the Condensed Consolidated Financial Statements formatted in XBRL.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

TRANSDIGM GROUP INCORPORATED

SIGNATURE	TITLE	DATE
/s/    W. Nicholas Howley         W. Nicholas Howley	Chairman of the Board of Directors and Chief Executive Officer (Principal Executive Officer)	May 8, 2013
/s/    Gregory Rufus         Gregory Rufus	Executive Vice President, Chief Financial Officer and Secretary (Principal Financial and Accounting Officer)	May 8, 2013

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EXHIBIT INDEX

TO FORM 10-Q FOR THE PERIOD ENDED MARCH 30, 2013

EXHIBIT NO.	DESCRIPTION
10.1	Amendment and Restatement Agreement, dated as of February 28, 2013, among TransDigm Inc., TransDigm Group Incorporated., Credit Suisse AG, as administrative agent and collateral agent, and the other agents and lenders listed therein. (Incorporated by reference to Form 8-K filed March 5, 2013)
31.1	Certification by Principal Executive Officer of TransDigm Group Incorporated pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification by Principal Financial Officer of TransDigm Group Incorporated pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification by Principal Executive Officer of TransDigm Group Incorporated pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification by Principal Financial Officer of TransDigm Group Incorporated pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Financial Statements and Notes to the Condensed Consolidated Financial Statements formatted in XBRL.

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, W. Nicholas Howley, certify that:

1. I have reviewed this quarterly report on Form 10-Q of TransDigm Group Incorporated;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors:

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 8, 2013

/s/ W. Nicholas Howley
Name:	W. Nicholas Howley
Title:	Chairman of the Board of Directors and Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Gregory Rufus, certify that:

1. I have reviewed this quarterly report on Form 10-Q of TransDigm Group Incorporated;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors:

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 8, 2013

/s/ Gregory Rufus
Name:	Gregory Rufus
Title:	Executive Vice President, Chief Financial Officer and Secretary (Principal Financial and Accounting Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of TransDigm Group Incorporated (the “Company”) for the period ended March 30, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, W. Nicholas Howley, Chairman of the Board of Directors and Chief Executive Officer (Principal Executive Officer), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition of the Company.

Date: May 8, 2013

/s/ W. Nicholas Howley
Name:	W. Nicholas Howley
Title:	Chairman of the Board of Directors and Chief
	Executive Officer (Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of TransDigm Group Incorporated (the “Company”) for the period ended March 30, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gregory Rufus, Executive Vice President, Chief Financial Officer and Secretary (Principal Financial and Accounting Officer), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition of the Company.

Date: May 8, 2013

/s/ Gregory Rufus
Name:	Gregory Rufus
Title:	Executive Vice President, Chief
	Financial Officer and Secretary
	(Principal Financial and Accounting Officer)

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Long-Term Debt (Parenthetical) (Detail)	Mar. 30, 2013	Sep. 30, 2012
7 3/4% Senior Subordinated Notes, Due 2018
Debt Instrument [Line Items]
Debt instrument, maturity date	2018	2018
5 1/2% Senior Subordinated Notes, Due 2020
Debt Instrument [Line Items]
Debt instrument, maturity date	2020	2020

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Supplemental Condensed Consolidating Statement Of Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Supplemental Guarantor Information [Line Items]
NET SALES	$ 465,609	$ 423,469	$ 896,027	$ 775,942
COST OF SALES	206,299	187,429	398,170	340,347
GROSS PROFIT	259,310	236,040	497,857	435,595
SELLING AND ADMINISTRATIVE EXPENSES	55,463	49,474	110,624	91,324
AMORTIZATION OF INTANGIBLE ASSETS	9,735	9,339	20,275	21,778
INCOME (LOSS) FROM OPERATIONS	194,112	177,227	366,958	322,493
INTEREST EXPENSE - Net	64,094	52,300	126,970	101,361
REFINANCING COSTS	30,281		30,281
INCOME BEFORE INCOME TAXES	99,737	124,927	209,707	221,132
INCOME TAX PROVISION (BENEFIT)	31,800	43,375	67,600	74,475
Net income	67,937	81,552	142,107	146,657
TransDigm Group
Supplemental Guarantor Information [Line Items]
EQUITY IN INCOME OF SUBSIDIARIES			(142,107)	(146,657)
INCOME BEFORE INCOME TAXES			142,107	146,657
Net income			142,107	146,657
TransDigm Inc.
Supplemental Guarantor Information [Line Items]
NET SALES			52,286	52,136
COST OF SALES			30,361	30,404
GROSS PROFIT			21,925	21,732
SELLING AND ADMINISTRATIVE EXPENSES			31,641	28,330
AMORTIZATION OF INTANGIBLE ASSETS			312	312
INCOME (LOSS) FROM OPERATIONS			(10,028)	(6,910)
INTEREST EXPENSE - Net			125,152	100,346
REFINANCING COSTS			30,281
EQUITY IN INCOME OF SUBSIDIARIES			(236,038)	(216,157)
INCOME BEFORE INCOME TAXES			70,577	108,901
INCOME TAX PROVISION (BENEFIT)			(71,530)	(37,756)
Net income			142,107	146,657
Subsidiary Guarantors
Supplemental Guarantor Information [Line Items]
NET SALES			789,907	692,146
COST OF SALES			331,306	286,659
GROSS PROFIT			458,601	405,487
SELLING AND ADMINISTRATIVE EXPENSES			70,430	58,395
AMORTIZATION OF INTANGIBLE ASSETS			19,084	20,792
INCOME (LOSS) FROM OPERATIONS			369,087	326,300
INTEREST EXPENSE - Net			1,243	244
INCOME BEFORE INCOME TAXES			367,844	326,056
INCOME TAX PROVISION (BENEFIT)			136,836	111,227
Net income			231,008	214,829
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
NET SALES			57,361	35,029
COST OF SALES			39,693	26,653
GROSS PROFIT			17,668	8,376
SELLING AND ADMINISTRATIVE EXPENSES			8,553	4,599
AMORTIZATION OF INTANGIBLE ASSETS			879	674
INCOME (LOSS) FROM OPERATIONS			8,236	3,103
INTEREST EXPENSE - Net			575	771
INCOME BEFORE INCOME TAXES			7,661	2,332
INCOME TAX PROVISION (BENEFIT)			2,294	1,004
Net income			5,367	1,328
Elimination
Supplemental Guarantor Information [Line Items]
NET SALES			(3,527)	(3,369)
COST OF SALES			(3,190)	(3,369)
GROSS PROFIT			(337)
INCOME (LOSS) FROM OPERATIONS			(337)
EQUITY IN INCOME OF SUBSIDIARIES			378,145	362,814
INCOME BEFORE INCOME TAXES			(378,482)	(362,814)
Net income			$ (378,482)	$ (362,814)

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Supplemental Guarantor Information - Additional Information (Detail)	6 Months Ended
	Mar. 30, 2013	Sep. 30, 2012
7 3/4% Senior Subordinated Notes due 2018
Supplemental Guarantor Information [Line Items]
Interest rate of senior subordinated debt	7.75%
Senior subordinate note, due date	2018
5 1/2% Senior Subordinated Notes, Due 2020
Supplemental Guarantor Information [Line Items]
Interest rate of senior subordinated debt	5.50%
Senior subordinate note, due date	2020	2020

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Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Sep. 30, 2012
Schedule of Inventory [Line Items]
Raw materials and purchased component parts	$ 226,475	$ 203,809
Work-in-progress	101,008	102,645
Finished Goods	50,550	48,395
Total	378,033	354,849
Reserves for excess and obsolete inventory and LIFO	(37,858)	(34,346)
Inventories - net	$ 340,175	$ 320,503

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Debt (Tables)

6 Months Ended

Mar. 30, 2013

Long-Term Debt

The Company’s long-term debt consists of the following (in thousands):

	March 30, 2013		September 30, 2012
Term loans	$	2,194,500	$	2,019,125
Senior Subordinated Notes due 2018		1,600,000		1,600,000
Senior Subordinated Notes due 2020		550,000		—
		4,344,500		3,619,125
Less current portion		22,000		20,500
Long-term debt	$	4,322,500	$	3,598,625

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Carrying Amounts and Fair Values of Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013		Sep. 30, 2012		Mar. 31, 2012	Sep. 30, 2011
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Cash and cash equivalents, Assets, Carrying Amount	$ 680,024		$ 440,524		$ 201,481	$ 376,183
Senior Subordinated Notes, Liabilities, Carrying Amount	4,344,500		3,619,125
Level 1
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Cash and cash equivalents, Assets, Carrying Amount	680,024		440,524
Cash and cash equivalents, Assets, Fair Value	680,024		440,524
Level 1 | 7 3/4% Senior Subordinated Notes due 2018
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Senior Subordinated Notes, Liabilities, Carrying Amount	1,600,000		1,600,000
Senior Subordinated Notes, Liabilities, Fair Value	1,752,000		1,696,000
Level 1 | 5 1/2% Senior Subordinated Notes, Due 2020
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Senior Subordinated Notes, Liabilities, Carrying Amount	550,000
Senior Subordinated Notes, Liabilities, Fair Value	572,000
Level 2 | Accrued liabilities
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Interest rate swap agreements, Liabilities, Carrying Amount	9,000	[1]	9,800	[1]
Interest rate swap agreements, Liabilities, Fair Value	9,000	[1]	9,800	[1]
Level 2 | Term Loans
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Term loans, Liabilities, Carrying Amount	2,194,500		2,019,125
Term loans, Liabilities, Fair Value	$ 2,217,000		$ 2,037,000

[1] Included in Accrued liabilities on the Condensed Consolidated Balance Sheet.

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Summary of Changes in Carrying Value of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 30, 2013
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 3,035,502
Goodwill acquired during the year	5,485
Other	(807)
Goodwill, Ending Balance	$ 3,040,180

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Supplemental Condensed Consolidating Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Sep. 30, 2012	Mar. 31, 2012	Sep. 30, 2011
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	$ 680,024	$ 440,524	$ 201,481	$ 376,183
Trade accounts receivable - Net	243,072	235,783
Inventories - Net	340,175	320,503
Deferred income taxes	23,632	29,134
Prepaid expenses and other	40,755	24,587
Total current assets	1,327,658	1,050,531
PROPERTY, PLANT AND EQUIPMENT - Net	175,442	172,737
GOODWILL	3,040,180	3,035,502
TRADEMARKS AND TRADE NAMES	461,477	467,614
OTHER INTANGIBLE ASSETS - Net	634,032	655,996
DEBT ISSUE COSTS - Net	44,975	62,190
OTHER	10,328	15,047
TOTAL ASSETS	5,694,092	5,459,617
Current portion of long-term debt	22,000	20,500
Accounts payable	73,696	74,178
Accrued liabilities	163,565	139,237
Total current liabilities	259,261	233,915
LONG-TERM DEBT	4,322,500	3,598,625
DEFERRED INCOME TAXES	361,288	356,896
OTHER NON-CURRENT LIABILITIES	65,674	51,347
Total liabilities	5,008,723	4,240,783
STOCKHOLDERS' EQUITY	685,369	1,218,834
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	5,694,092	5,459,617
TransDigm Group
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	15,116	20,100	18,552	5,695
Total current assets	15,116	20,100
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	670,253	1,198,734
TOTAL ASSETS	685,369	1,218,834
STOCKHOLDERS' EQUITY	685,369	1,218,834
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	685,369	1,218,834
TransDigm Inc.
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	650,225	406,891	165,167	360,074
Trade accounts receivable - Net	14,750	12,261
Inventories - Net	27,152	23,410
Deferred income taxes	23,632	29,134
Prepaid expenses and other	29,148	9,585
Total current assets	744,907	481,281
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	4,737,253	4,720,602
PROPERTY, PLANT AND EQUIPMENT - Net	15,616	15,685
GOODWILL	64,462	85,680
TRADEMARKS AND TRADE NAMES	19,377	19,377
OTHER INTANGIBLE ASSETS - Net	7,836	8,151
DEBT ISSUE COSTS - Net	44,975	62,190
OTHER	2,714	2,750
TOTAL ASSETS	5,637,140	5,395,716
Current portion of long-term debt	22,000	20,500
Accounts payable	10,070	10,068
Accrued liabilities	94,491	68,808
Total current liabilities	126,561	99,376
LONG-TERM DEBT	4,322,500	3,598,625
DEFERRED INCOME TAXES	361,288	356,896
OTHER NON-CURRENT LIABILITIES	38,535	24,083
Total liabilities	4,848,884	4,078,980
STOCKHOLDERS' EQUITY	788,256	1,316,736
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	5,637,140	5,395,716
Subsidiary Guarantors
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	4,641	4,494	7,309	2,115
Trade accounts receivable - Net	211,755	207,537
Inventories - Net	286,846	272,180
Prepaid expenses and other	8,104	12,626
Total current assets	511,346	496,837
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	2,233,626	2,055,938
PROPERTY, PLANT AND EQUIPMENT - Net	146,698	144,177
GOODWILL	2,900,328	2,872,483
TRADEMARKS AND TRADE NAMES	411,656	416,490
OTHER INTANGIBLE ASSETS - Net	594,757	614,225
OTHER	7,204	(27,249)
TOTAL ASSETS	6,805,615	6,572,901
Accounts payable	53,897	54,054
Accrued liabilities	61,076	64,250
Total current liabilities	114,973	118,304
OTHER NON-CURRENT LIABILITIES	25,833	26,480
Total liabilities	140,806	144,784
STOCKHOLDERS' EQUITY	6,664,809	6,428,117
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	6,805,615	6,572,901
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	10,042	9,039	10,453	8,299
Trade accounts receivable - Net	17,442	17,486
Inventories - Net	27,000	25,397
Prepaid expenses and other	3,503	2,376
Total current assets	57,987	54,298
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	84,905	43,745
PROPERTY, PLANT AND EQUIPMENT - Net	13,128	12,875
GOODWILL	75,390	77,339
TRADEMARKS AND TRADE NAMES	30,444	31,747
OTHER INTANGIBLE ASSETS - Net	31,439	33,620
OTHER	407	39,546
TOTAL ASSETS	293,700	293,170
Accounts payable	10,611	11,553
Accrued liabilities	7,998	6,179
Total current liabilities	18,609	17,732
OTHER NON-CURRENT LIABILITIES	1,306	784
Total liabilities	19,915	18,516
STOCKHOLDERS' EQUITY	273,785	274,654
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	293,700	293,170
Elimination
Supplemental Guarantor Information [Line Items]
Trade accounts receivable - Net	(875)	(1,501)
Inventories - Net	(823)	(484)
Total current assets	(1,698)	(1,985)
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	(7,726,037)	(8,019,019)
OTHER	3
TOTAL ASSETS	(7,727,732)	(8,021,004)
Accounts payable	(882)	(1,497)
Total current liabilities	(882)	(1,497)
Total liabilities	(882)	(1,497)
STOCKHOLDERS' EQUITY	(7,726,850)	(8,019,507)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ (7,727,732)	$ (8,021,004)

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Unaudited Interim Financial Information

6 Months Ended

Mar. 30, 2013

Unaudited Interim Financial Information

2. UNAUDITED INTERIM FINANCIAL INFORMATION

The financial information included herein is unaudited; however, the information reflects all adjustments (consisting solely of normal recurring adjustments) that are, in the opinion of management, necessary for a fair presentation of the Company’s financial position and results of operations and cash flows for the interim periods presented. These financial statements and notes should be read in conjunction with the financial statements and related notes for the year ended September 30, 2012 included in TD Group’s Form 10-K dated November 16, 2012. As disclosed therein, the Company’s annual consolidated financial statements were prepared in conformity with generally accepted accounting principles in the United States (“GAAP”). The September 30, 2012 condensed consolidated balance sheet was derived from TD Group’s audited financial statements. The results of operations for the twenty-six week period ended March 30, 2013 are not necessarily indicative of the results to be expected for the full year.

Certain reclassifications of prior year amounts have been made to the Condensed Consolidated Statement of Cash Flows to conform to current year classification to reflect the effect of exchange rate changes on cash and cash equivalents relating to our foreign operations.

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Fair Value Measurements - Additional Information (Detail)	6 Months Ended
	Mar. 30, 2013	Sep. 30, 2012
7 3/4% Senior Subordinated Notes due 2018
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Interest rate of senior subordinated debt	7.75%
Senior subordinate note, due date	2018
5 1/2% Senior Subordinated Notes, Due 2020
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Interest rate of senior subordinated debt	5.50%
Senior subordinate note, due date	2020	2020

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Acquisitions - Additional Information (Detail) (USD $)	3 Months Ended	1 Months Ended		1 Months Ended	3 Months Ended
	Dec. 29, 2012	Aug. 16, 2012 Distribution business	Dec. 29, 2012 Distribution business	Oct. 31, 2012 C-Safe LLC	Mar. 30, 2013 C-Safe LLC	Sep. 17, 2012 Aero-Instruments Co., LLC	Jun. 30, 2012 AmSafe Global Holdings, Inc.	Feb. 15, 2012 AmSafe Global Holdings, Inc.	Mar. 31, 2012 Harco Laboratories, Incorporated	Dec. 09, 2011 Harco Laboratories, Incorporated
Business Acquisition [Line Items]
Cash consideration paid to acquire business						$ 34,600,000		$ 749,700,000		$ 83,300,000
Amount of goodwill expected to be tax deductible						22,000,000		77,000,000
Business acquisition, purchase price adjustment paid						100,000	500,000		400,000
Cash proceeds from sale of business		17,800,000		5,000,000	5,500,000
Working capital adjustment			100,000
Total amount of business sold				16,400,000
Short term note receivable from business sold				11,400,000
Goodwill								$ 396,823,000		$ 56,000,000
Estimated useful life of aircraft (in years)	30 years

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Description of Business - Additional Information (Detail)	6 Months Ended
	Mar. 30, 2013
Nature Of Business [Line Items]
Percentage of ownership in subsidiary	100.00%
7 3/4% Senior Subordinated Notes, Due 2018
Nature Of Business [Line Items]
Interest rate of senior subordinated debt	7.75%
5 1/2% Senior Subordinated Notes, Due 2020
Nature Of Business [Line Items]
Interest rate of senior subordinated debt	5.50%

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Derivatives and Hedging Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 30, 2013
Derivative [Line Items]
Derivative loss to be recognized	$ 6.5
2013 Credit Facility
Derivative [Line Items]
Interest rate swap, notional amount	$ 353
Fixed rate of interest under interest rate swap	5.17%
Interest rate swap agreements description	2.17% plus the 3% margin percentage

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Purchase Price Allocation Estimated Fair Values of Assets Acquired Liabilities Assumed (Detail) (AmSafe Global Holdings, Inc., USD $) In Thousands, unless otherwise specified	Feb. 15, 2012
AmSafe Global Holdings, Inc.
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Current assets, excluding cash acquired	$ 122,694
Property, plant and equipment	20,787
Intangible assets	270,500
Goodwill	396,823
Other	15,614
Total assets acquired	826,418
Current liabilities	24,979
Deferred income taxes - long term	48,626
Other noncurrent liabilities	3,082
Total liabilities assumed	76,687
Net assets acquired	$ 749,731

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Computation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Numerator for earnings per share:
Net income	$ 67,937	$ 81,552	$ 142,107	$ 146,657
Less dividends paid on participating securities			(35,640)
Net income applicable to common stock - basic and diluted	67,937	81,552	103,977	143,358
Denominator for basic and diluted earnings per share under the two-class method:
Weighted average common shares outstanding	52,204	50,800	52,001	50,615
Vested options deemed participating securities	2,249	3,082	2,452	3,267
Total shares for basic and diluted earnings per share	54,453	53,882	54,453	53,882
Basic and diluted earnings per share	$ 1.25	$ 1.51	$ 1.91	$ 2.66
Participating Securities
Numerator for earnings per share:
Less dividends paid on participating securities			$ (38,130)	$ (3,299)

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Description of the Business

6 Months Ended

Mar. 30, 2013

Description of the Business

1. DESCRIPTION OF THE BUSINESS

Description of the Business – TransDigm Group Incorporated (“TD Group”), through its wholly-owned subsidiary, TransDigm Inc., is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly all commercial and military aircraft in service today. TransDigm Inc., along with TransDigm Inc.’s direct and indirect wholly-owned operating subsidiaries (collectively, with TD Group, the “Company” or “TransDigm”), offers a broad range of proprietary aerospace components. TD Group has no significant assets or operations other than its 100% ownership of TransDigm Inc. TD Group’s common stock is listed on The New York Stock Exchange, or the NYSE, under the trading symbol “TDG.”

Major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, NiCad batteries and chargers, engineered latching and locking devices, rods and locking devices, engineered connectors and elastomers, cockpit security components and systems, specialized cockpit displays, aircraft audio systems, specialized lavatory components, seatbelts and safety restraints, engineered interior surfaces and lighting and control technology.

Separate Financial Statements – Separate financial statements of TransDigm Inc. are not presented because TransDigm Inc.’s 7³/₄% senior subordinated notes and 5 ¹/₂% senior subordinated notes are fully and unconditionally guaranteed on a senior subordinated basis by TD Group and all existing 100% owned domestic subsidiaries of TransDigm Inc. and because TD Group has no significant operations or assets separate from its investment in TransDigm Inc.

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Inventories - Additional Information (Detail)	Mar. 30, 2013
Inventories [Line Items]
Percent of LIFO inventory	6.00%

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Debt - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended		1 Months Ended		3 Months Ended	1 Months Ended								1 Months Ended
	Feb. 28, 2013	Mar. 30, 2013	Dec. 29, 2012	Mar. 30, 2013	Mar. 31, 2012	Nov. 30, 2012 Cash Dividends	Nov. 30, 2012 Dividend Equivalent Payments	Dec. 29, 2012 Dividend Equivalent Payments	Feb. 28, 2013 Tranche B	Feb. 28, 2013 Tranche C	Feb. 28, 2013 Revolving A commitments	Feb. 28, 2013 Revolving B commitments	Feb. 28, 2013 2013 Credit Facility D	Mar. 30, 2013 2013 Credit Facility	Mar. 30, 2013 2013 Credit Facility Tranche B	Mar. 30, 2013 2013 Credit Facility Tranche C	Feb. 28, 2013 TransDigm's Foreign Subsidiaries	Oct. 15, 2012 5 1/2% Senior Subordinated Notes, Due 2020	Oct. 09, 2012 2012 Term Loan Credit Facility Amendment
Debt Instrument [Line Items]
Special dividend		$ 850,000,000
Additional loan amount													500,000,000						150,000,000
Date the credit facility was fully drawn													Feb. 28, 2013						Oct. 15, 2012
Term loan facility amount				147,360,000	484,713,000								2,200,000,000
Revolving credit facility amount													310,000,000
Debt instrument, face amount									500,000,000	1,700,000,000								550,000,000
Term loan maturity date									Feb. 14, 2017	Feb. 28, 2020
Quarterly principal payments	5,500,000
Quarterly principal payments, beginning date	Mar. 28, 2013
Revolving credit facility amount											32,000,000	278,000,000
Revolving credit facility maturity date											Dec. 06, 2015	Feb. 28, 2018
Letter of credit outstanding		6,700,000		6,700,000
Borrowings available under credit facility		303,300,000		303,300,000
Percentage of voting capital stock																	65.00%
Floor basis spread on LIBO														0.75%
Applicable interest rate on term loan															3.50%	3.75%
Term loan mandatory principal prepayment commencement period from fiscal year (days)													90
Percentage of principal amount of term loan to be prepaid													100.00%
Prepayment premium													1.00%
Credit facility, covenants	(i) incur or guarantee additional indebtedness or issue preferred stock; (ii) pay distributions on, redeem or repurchase capital stock or redeem or repurchase subordinated debt; (iii) make investments; (iv) sell assets; (v) enter into agreements that restrict distributions or other payments from restricted subsidiaries to TransDigm; (vi) incur or suffer to exist liens securing indebtedness; (vii) consolidate, merge or transfer all or substantially all of their assets; and (viii) engage in transactions with affiliates.
REFINANCING COSTS		30,281,000		30,281,000
Percentage of principal amount of debt on issue price																		100.00%
Special cash dividend paid per share			$ 12.85	$ 12.85		$ 12.85
Special cash dividend and dividend equivalents paid						$ 664,300,000	$ 35,400,000	$ 35,400,000

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Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Sep. 30, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 680,024	$ 440,524
Trade accounts receivable - Net	243,072	235,783
Inventories - Net	340,175	320,503
Deferred income taxes	23,632	29,134
Prepaid expenses and other	40,755	24,587
Total current assets	1,327,658	1,050,531
PROPERTY, PLANT AND EQUIPMENT - Net	175,442	172,737
GOODWILL	3,040,180	3,035,502
TRADEMARKS AND TRADE NAMES	461,477	467,614
OTHER INTANGIBLE ASSETS - Net	634,032	655,996
DEBT ISSUE COSTS - Net	44,975	62,190
OTHER	10,328	15,047
TOTAL ASSETS	5,694,092	5,459,617
CURRENT LIABILITIES:
Current portion of long-term debt	22,000	20,500
Accounts payable	73,696	74,178
Accrued liabilities	163,565	139,237
Total current liabilities	259,261	233,915
LONG-TERM DEBT	4,322,500	3,598,625
DEFERRED INCOME TAXES	361,288	356,896
OTHER NON-CURRENT LIABILITIES	65,674	51,347
Total liabilities	5,008,723	4,240,783
STOCKHOLDERS' EQUITY:
Common stock - $.01 par value; authorized 224,400,000 shares; issued 52,901,288 and 52,157,225 at March 30, 2013 and September 30, 2012, respectively	529	521
Additional paid-in capital	620,485	553,223
Retained earnings	95,981	689,229
Accumulated other comprehensive loss	(15,538)	(8,051)
Treasury stock, at cost; 505,400 shares at March 30, 2013 and September 30, 2012, respectively	(16,088)	(16,088)
Total stockholders' equity	685,369	1,218,834
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 5,694,092	$ 5,459,617

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Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended					1 Months Ended
	Dec. 29, 2012	Mar. 30, 2013	Mar. 30, 2013 Options granted prior to October 1, 2011	Sep. 30, 2011 Options granted prior to October 1, 2011	Mar. 30, 2013 Options granted in fiscal 2012	Sep. 30, 2011 Options granted in fiscal 2012	Nov. 30, 2012 Cash Dividends
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold price minimum for accelerated vesting			$ 147.15	$ 160.00	$ 157.15	$ 170.00
Special cash dividend paid per share	$ 12.85	$ 12.85					$ 12.85
Unvested shares vesting period		2 years
Number of trading days		60 days

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Condensed Consolidated Statement of Changes in Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Treasury Stock
BEGINNING BALANCE at Sep. 30, 2012	$ 1,218,834	$ 521	$ 553,223	$ 689,229	$ (8,051)	$ (16,088)
BEGINNING BALANCE (in shares) at Sep. 30, 2012		52,157,225				(505,400)
Dividends paid	(699,715)			(699,715)
Unvested dividend equivalent payments	(35,640)			(35,640)
Compensation expense recognized for employee stock options	14,262		14,262
Excess tax benefits related to share-based payment arrangements	40,044		40,044
Exercise of employee stock options (in shares)		743,766
Exercise of employee stock options	12,919	8	12,911
Common stock issued (in shares)		297
Common stock issued	45		45
Net income	142,107			142,107
Interest rate swaps, net of tax	(330)				(330)
Foreign currency translation adjustments	(6,943)				(6,943)
Other	(214)				(214)
ENDING BALANCE at Mar. 30, 2013	$ 685,369	$ 529	$ 620,485	$ 95,981	$ (15,538)	$ (16,088)
ENDING BALANCE (in shares) at Mar. 30, 2013		52,901,288				(505,400)

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Intangible Assets Acquired (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 30, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	$ 5,835
Intangible assets subject to amortization	1,200
Total - Intangible assets both subject to and not subject to amortization	7,035
Goodwill
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	5,485
Trademarks and trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	350
Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	$ 1,200
Amortization Period (in years)	20 years

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Earnings Per Share (Two-Class Method) (Tables)

6 Months Ended

Mar. 30, 2013

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):

	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March  30, 2013		March  31, 2012		March  30, 2013			March  31, 2012
Numerator for earnings per share:
Net income	$	67,937	$	81,552	$	142,107		$	146,657
Less dividends paid on participating securities		—		—		(38,130	)		(3,299	)
Net income applicable to common stock - basic and diluted	$	67,937	$	81,552	$	103,977		$	143,358
Denominator for basic and diluted earnings per share under the two-class method:
Weighted average common shares outstanding		52,204		50,800		52,001			50,615
Vested options deemed participating securities		2,249		3,082		2,452			3,267
Total shares for basic and diluted earnings per share		54,453		53,882		54,453			53,882
Basic and diluted earnings per share	$	1.25	$	1.51	$	1.91		$	2.66

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Intangible Assets - Additional Information (Detail) (USD $)	6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Schedule of Intangible Assets Disclosure [Line Items]
Aggregate amortization expense	$ 20,366,000	$ 21,875,000
Estimated Amortization Expense, 2013	38,200,000
Estimated Amortization Expense, 2014	36,100,000
Estimated Amortization Expense, 2015	36,100,000
Estimated Amortization Expense, 2016	36,100,000
Estimated Amortization Expense, 2017	36,100,000
Estimated Amortization Expense, 2018	$ 36,100,000

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Intangible Assets (Tables)

6 Months Ended

Mar. 30, 2013

Intangible Assets Subject to Amortization

Intangible assets subject to amortization consist of the following (in thousands):

	March 30, 2013						September 30, 2012
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Technology	$	721,282	$	122,954	$	598,328	$	723,231	$	105,995	$	617,236
Order backlog		3,954		3,877		77		5,910		3,965		1,945
Other		43,272		7,645		35,627		43,343		6,528		36,815
Total	$	768,508	$	134,476	$	634,032	$	772,484	$	116,488	$	655,996

Intangible Assets Acquired

Intangible assets acquired during the twenty-six week period ended March 30, 2013 were as follows (in thousands):

	Cost		Amortization Period
Intangible assets not subject to amortization:
Goodwill	$	5,485
Trademarks and trade names		350
		5,835
Intangible assets subject to amortization:
Technology		1,200		20 years
		1,200
Total	$	7,035

Summary of Changes in Carrying Value of Goodwill

The following is a summary of changes in the carrying value of goodwill from September 30, 2012 through March 30, 2013 (in thousands):

Balance, September 30, 2012	$	3,035,502
Goodwill acquired during the year		5,485
Other		(807	)
Balance, March 30, 2013	$	3,040,180

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Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
OPERATING ACTIVITIES:
Net income	$ 142,107	$ 146,657
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	13,407	11,154
Amortization of intangible assets	20,366	21,875
Amortization of debt issue costs	6,966	5,741
REFINANCING COSTS	30,281
Non-cash equity compensation	14,262	8,535
Excess tax benefits related to share-based payment arrangements	(40,044)	(24,231)
Deferred income taxes	5,482	(3,470)
Changes in assets/liabilities, net of effects from acquisitions of businesses:
Trade accounts receivable	(6,344)	(9,193)
Inventories	(18,226)	(772)
Income taxes receivable/payable	25,183	4,482
Other assets	2,776	1,889
Accounts payable	(1,825)	(4,092)
Accrued and other liabilities	2,898	6,387
Net cash provided by operating activities	197,289	164,962
INVESTING ACTIVITIES:
Capital expenditures	(16,316)	(9,109)
Acquisition of businesses, net of cash acquired	(8,501)	(833,512)
Cash proceeds from sale of investment	10,500
Cash proceeds from working capital settlement	134
Net cash used in investing activities	(14,183)	(842,621)
FINANCING ACTIVITIES:
Excess tax benefits related to share-based payment arrangements	40,044	24,231
Proceeds from exercise of stock options	12,919	7,316
Dividends paid	(702,406)	(3,299)
Treasury stock purchased		(846)
Proceeds from 2013 credit facility - net	2,191,127
Repayment on 2013 credit facility	(5,500)
Proceeds from 2011 credit facility - net	147,360	484,713
Repayment on 2011 credit facility	(2,169,125)	(9,000)
Proceeds from senior subordinated notes due 2020 - net	542,000
Net cash provided by (used in) financing activities	56,419	503,115
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(25)	(158)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	239,500	(174,702)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	440,524	376,183
CASH AND CASH EQUIVALENTS, END OF PERIOD	680,024	201,481
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest	108,390	93,884
Cash paid during the period for income taxes	$ 37,124	$ 57,780

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 30, 2013	Sep. 30, 2012
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	224,400,000	224,400,000
Common stock, shares issued	52,901,288	52,157,225
Treasury stock, shares	505,400	505,400

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Fair Value Measurements

6 Months Ended

Mar. 30, 2013

Fair Value Measurements

10. FAIR VALUE MEASUREMENTS

The following tables present our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

The following summarizes the carrying amounts and fair values of financial instruments (in thousands):

			March 30, 2013				September 30, 2012
	Level		Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents		1	$	680,024	$	680,024	$	440,524	$	440,524
Liabilities:
Interest rate swap agreements (1)		2		9,000		9,000		9,800		9,800
Long-term debt:
Term loans		2		2,194,500		2,217,000		2,019,125		2,037,000
7  3/4% Senior Subordinated Notes due 2018		1		1,600,000		1,752,000		1,600,000		1,696,000
5  1/2% Senior Subordinated Notes due 2020		1		550,000		572,000		—		—

(1) Included in Accrued liabilities on the Condensed Consolidated Balance Sheet.

Interest rate swaps were measured at fair value using quoted market prices for the swap interest rate indexes over the term of the swap discounted to present value versus the fixed rate of the contract. The estimated fair value of the Company’s term loans was based on information provided by the agent under the Company’s senior secured credit facility. The estimated fair values of the Company’s 7³/₄% Senior Subordinated Notes due 2018 and 5¹/₂% Senior Subordinated Notes due 2020 were based upon quoted market prices.

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Document and Entity Information	6 Months Ended
	Mar. 30, 2013	Apr. 27, 2013
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Trading Symbol	TDG
Entity Registrant Name	TRANSDIGM GROUP INC
Entity Central Index Key	0001260221
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		52,399,132

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Derivatives and Hedging Activities

6 Months Ended

Mar. 30, 2013

Derivatives and Hedging Activities

11. DERIVATIVES AND HEDGING ACTIVITIES

The Company is exposed to, among other things, the impact of changes in interest rates in the normal course of business. The Company’s risk management program is designed to manage the exposure and volatility arising from these risks, and utilizes derivative financial instruments to offset a portion of these risks. The Company uses derivative financial instruments only to the extent necessary to hedge identified business risks and does not enter into such transactions for trading purposes. The Company generally does not require collateral or other security with counterparties to these financial instruments and is therefore subject to credit risk in the event of nonperformance; however, the Company monitors credit risk and currently does not anticipate nonperformance by other parties.

At March 30, 2013, three forward-starting interest rate swap agreements were in place to swap variable rates on the 2013 Credit Facility for a fixed rate based on an aggregate notional amount of $353 million. These interest rate swap agreements converted the variable interest rate on the aggregate notional amount of the 2013 Credit Facility to a fixed rate of 5.17% (2.17% plus the 3% margin percentage) through June 30, 2015.

Interest rate swap agreements are used to manage interest rate risk associated with floating-rate borrowings under our 2013 Credit Facility. The interest rate swap agreements utilized by the Company effectively modify the Company’s exposure to interest rate risk by converting a portion of the Company’s floating-rate debt to a fixed rate basis through the expiration date of the interest rate swap agreements, thereby reducing the impact of interest rate changes on future interest expense. These agreements involve the receipt of floating rate amounts in exchange for fixed rate interest payments over the term of the agreements without an exchange of the underlying principal amount. Prior to February 28, 2013, these derivative instruments qualified as effective cash flow hedges under GAAP. For these cash flow hedges, the effective portion of the gain or loss from the financial instruments was initially reported as a component of accumulated other comprehensive income (loss) in stockholders’ equity and subsequently reclassified into earnings in the same line as the hedged item in the same period or periods during which the hedged item affected earnings.

In conjunction with the refinancing of the 2011 Credit Facility, the Company no longer designated the interest rate swap agreements as cash flow hedges for accounting purposes. Accordingly, amounts previously recorded as a component of accumulated other comprehensive loss in stockholder’s equity will be amortized into earnings over the remaining period of the swap agreements. The net after-tax loss included in accumulated other comprehensive loss to be reclassified into interest expense over the remaining term of the swap agreement was $6.5 million at March 30, 2013.

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Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Mar. 30, 2013	Dec. 29, 2012	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
NET SALES	$ 465,609		$ 423,469	$ 896,027	$ 775,942
COST OF SALES	206,299		187,429	398,170	340,347
GROSS PROFIT	259,310		236,040	497,857	435,595
SELLING AND ADMINISTRATIVE EXPENSES	55,463		49,474	110,624	91,324
AMORTIZATION OF INTANGIBLE ASSETS	9,735		9,339	20,275	21,778
INCOME FROM OPERATIONS	194,112		177,227	366,958	322,493
INTEREST EXPENSE - Net	64,094		52,300	126,970	101,361
REFINANCING COSTS	30,281			30,281
INCOME BEFORE INCOME TAXES	99,737		124,927	209,707	221,132
INCOME TAX PROVISION	31,800		43,375	67,600	74,475
NET INCOME	67,937		81,552	142,107	146,657
NET INCOME APPLICABLE TO COMMON STOCK	$ 67,937		$ 81,552	$ 103,977	$ 143,358
Net earnings per share - see Note 5:
Basic and diluted	$ 1.25		$ 1.51	$ 1.91	$ 2.66
Cash dividends paid per common share		$ 12.85		$ 12.85
Weighted-average shares outstanding:
Basic and diluted	54,453		53,882	54,453	53,882

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Earnings Per Share (Two-Class Method)

6 Months Ended

Mar. 30, 2013

Earnings Per Share (Two-Class Method)

5. EARNINGS PER SHARE (TWO-CLASS METHOD)

The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):

	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March  30, 2013		March  31, 2012		March  30, 2013			March  31, 2012
Numerator for earnings per share:
Net income	$	67,937	$	81,552	$	142,107		$	146,657
Less dividends paid on participating securities		—		—		(38,130	)		(3,299	)
Net income applicable to common stock - basic and diluted	$	67,937	$	81,552	$	103,977		$	143,358
Denominator for basic and diluted earnings per share under the two-class method:
Weighted average common shares outstanding		52,204		50,800		52,001			50,615
Vested options deemed participating securities		2,249		3,082		2,452			3,267
Total shares for basic and diluted earnings per share		54,453		53,882		54,453			53,882
Basic and diluted earnings per share	$	1.25	$	1.51	$	1.91		$	2.66

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Recent Accounting Pronouncements

6 Months Ended

Mar. 30, 2013

Recent Accounting Pronouncements

4. RECENT ACCOUNTING PRONOUNCEMENTS

In June 2011, the Financial Accounting Standards Board (“FASB”) issued authoritative accounting guidance included in Accounting Standards Codification (“ASC”) Topic 220, “Comprehensive Income.” This guidance eliminates the option to report other comprehensive income and its components in the statement of changes in equity. Companies can elect to present items of net income and other comprehensive income in one continuous statement or in two separate, but consecutive, statements. The Company adopted the presentation guidance during the first quarter of fiscal 2013 and has elected to present two separate consecutive statements.

In September 2011, the FASB issued authoritative accounting guidance included in ASC Topic 350, “Intangibles—Goodwill and Other”. This guidance amends the requirements for goodwill impairment testing. The Company has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, the Company determines it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, then performing the two-step impairment test is unnecessary. This guidance is effective for the Company for its annual goodwill impairment testing for the year ending September 30, 2013. The Company does not expect this guidance to have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

In July 2012, the FASB issued authoritative guidance included in ASC Topic 350, “Intangibles—Goodwill and Other.” This guidance permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is impaired, as a basis for determining whether it is necessary to perform the quantitative impairment test described in FASB ASC Topic 350, “Intangibles—Goodwill and Other.” This guidance is effective for the Company for its annual impairment testing for the year ending September 30, 2013. The Company does not expect this guidance to have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

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Inventories (Tables)

6 Months Ended

Mar. 30, 2013

Inventories

Inventories consist of the following (in thousands):

	March 30, 2013			September 30, 2012
Raw materials and purchased component parts	$	226,475		$	203,809
Work-in-progress		101,008			102,645
Finished Goods		50,550			48,395
Total		378,033			354,849
Reserves for excess and obsolete inventory and LIFO		(37,858	)		(34,346	)
Inventories - net	$	340,175		$	320,503

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Stock-Based Compensation

6 Months Ended

Mar. 30, 2013

Stock-Based Compensation

12. STOCK-BASED COMPENSATION

In connection with the $12.85 special cash dividend paid in November 2012, in order to take into account the earlier return of capital, the TD Group compensation committee adjusted the market-based vesting features in outstanding options pursuant to the authority granted to the committee under the TD Group stock incentive plan. Under this “market sweep” provision, unvested options granted prior to October 1, 2011 will accelerate and become fully vested if the closing price of the Company’s common stock exceeds $147.15 per share (previously $160 per share) on any 60 trading days during any consecutive 12-month period commencing March 1, 2013 and unvested options granted in fiscal 2012 will accelerate and become fully vested if the closing price of the Company’s common stock exceeds $157.15 per share (previously $170 per share) on any 60 trading days during any consecutive 12-month period commencing two years from the date of grant. Options granted in fiscal 2013 do not contain such accelerated vesting provision.

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Debt

6 Months Ended

Mar. 30, 2013

Debt

8. DEBT

The Company’s long-term debt consists of the following (in thousands):

	March 30, 2013		September 30, 2012
Term loans	$	2,194,500	$	2,019,125
Senior Subordinated Notes due 2018		1,600,000		1,600,000
Senior Subordinated Notes due 2020		550,000		—
		4,344,500		3,619,125
Less current portion		22,000		20,500
Long-term debt	$	4,322,500	$	3,598,625

Amendment No. 2 to 2010 (Revolving) Credit Facility - In accordance with the terms of the credit agreement dated December 6, 2010, as amended by the Amendment No.1, dated as of March 25, 2012 (the “2010 Credit Facility”), TransDigm Inc. entered into Amendment No. 2 to the 2010 Credit Facility on October 9, 2012. Amendment No. 2 to the 2010 Credit Facility provided for a modification to the restricted payment covenant to permit a special dividend in an amount not to exceed $850 million and a modification to the financial covenant ratios.

Amendment No. 2 to 2011 (Term Loan) Credit Facility - In accordance with the terms of the credit agreement, dated as of February 14, 2011, as amended by Amendment No. 1 and Incremental Term Loan Assumption Agreement, dated as of February 15, 2012 (the “2011 Credit Facility”), TransDigm Inc. entered into Amendment No. 2 and Incremental Term Loan Assumption Agreement to the 2011 Credit Facility (the “2012 Term Loan Credit Facility Amendment”) on October 9, 2012. The 2012 Term Loan Credit Facility Amendment provides for an additional term loan facility in the aggregate principal amount of $150 million. The additional term loan facility was fully drawn on October 15, 2012.

Amended and Restated Credit Facility - On February 28, 2013, TransDigm Inc. entered into an Amendment and Restatement Agreement (the “Amendment and Restatement Agreement”) in which TransDigm amended and restated its 2010 Credit Facility and 2011 Credit Facility. The Amendment and Restatement Agreement provides for a $2,200 million term loan facility (the “New Term Loan Facility”), which was fully drawn on February 28, 2013, and a $310 million revolving credit facility (the “Revolving Credit Facility” and together with the Term Loan Facility, the “2013 Credit Facility”).

The proceeds of the New Term Loan Facility were used to repay in full the outstanding term loans under the 2011 Credit Facility and the related transaction expenses associated therewith. The New Term Loan Facility consists of two tranches of term loans—tranche B term loans and tranche C term loans, and the Revolving Credit Facility consists of two tranches—revolving A commitments and revolving B commitments. The tranche B term loans consist of $500 million in the aggregate and the tranche C term loans consist of $1,700 million in the aggregate. The tranche B term loans mature on February 14, 2017 and the tranche C term loans mature on February 28, 2020. The Term Loan Facility requires quarterly principal payments of $5.5 million which began on March 28, 2013. The revolving A commitments consist of $32 million in the aggregate and the revolving B commitments consist of $278 million in the aggregate. The revolving A commitments mature on December 6, 2015 and the revolving B commitments mature on February 28, 2018. At March 30, 2013, the Company had $6.7 million letters of credit outstanding and $303.3 million of borrowings available under the 2013 Credit Facility.

Under the terms of the 2013 Credit Facility, TransDigm is entitled on one or more occasions, subject to the satisfaction of certain conditions, to request additional commitments under the Revolving Credit Facility or additional term loans in the aggregate principal amount of up to $500 million to the extent that existing or new lenders agree to provide such additional term loans. In addition, TransDigm is entitled to convert, subject to certain conditions, the revolving A commitments to revolving B commitments.

All of the indebtedness outstanding under the 2013 Credit Facility is guaranteed by TD Group and all of TransDigm’s current and future domestic restricted subsidiaries (other than immaterial subsidiaries). In addition, the obligations of TransDigm and the guarantors under the 2013 Credit Facility are secured ratably in accordance with each lender’s respective revolving and term loan commitments by a first priority security interest in substantially all of the existing and future property and assets, including inventory, equipment, general intangibles, intellectual property, investment property and other personal property (but excluding leasehold interests and certain other assets) of TransDigm and its existing and future domestic restricted subsidiaries (other than immaterial subsidiaries), and a first priority pledge of the capital stock of TransDigm and its subsidiaries (other than foreign subsidiaries and certain domestic subsidiaries, of which 65% of the voting capital stock is pledged).

The interest rates per annum applicable to the loans under the 2013 Credit Facility will be, at TransDigm’s option, equal to either an alternate base rate or an adjusted LIBO rate for one, two, three or six-month (or to the extent agreed to by each relevant lender, nine or twelve-month) interest periods chosen by TransDigm, in each case plus an applicable margin percentage. The adjusted LIBO rate is subject to a floor of .75%. At March 30, 2013 the applicable interest rate was 3.50% on the tranche B term loan and 3.75% on the tranche C term loan.

The term loan facility requires mandatory prepayments of principal based on certain percentages of Excess Cash Flow (as defined in the 2013 Credit Facility), commencing 90 days after the end of each fiscal year, commencing with the fiscal year ending September 30, 2014, subject to certain exceptions. In addition, subject to certain exceptions (including, with respect to asset sales, the reinvestment in productive assets), TransDigm will be required to prepay the loans outstanding under the term loan facility at 100% of the principal amount thereof, plus accrued and unpaid interest, with the net cash proceeds of certain asset sales and issuance or incurrence of certain indebtedness. In addition, if, prior to February 28, 2014, the principal amount of the term loans are (i) prepaid substantially concurrently with the incurrence by TD Group, TransDigm or any its subsidiaries of new bank loans that have an effective yield lower than the yield in effect on the term loans so prepaid or (ii) received by a lender due to a mandatory assignment following the failure of such lender to consent to an amendment of the 2013 Credit Facility that has the effect of reducing the effective interest rate with respect to the term loans, such prepayment or receipt shall be accompanied by a premium of 1.0%.

The 2013 Credit Facility contains certain covenants that limit the ability of TD Group, TransDigm and TransDigm’s restricted subsidiaries to, among other things: (i) incur or guarantee additional indebtedness or issue preferred stock; (ii) pay distributions on, redeem or repurchase capital stock or redeem or repurchase subordinated debt; (iii) make investments; (iv) sell assets; (v) enter into agreements that restrict distributions or other payments from restricted subsidiaries to TransDigm; (vi) incur or suffer to exist liens securing indebtedness; (vii) consolidate, merge or transfer all or substantially all of their assets; and (viii) engage in transactions with affiliates.

The Company recorded refinancing costs of $30.3 million during the thirteen week period ended March 30, 2013 representing debt issue costs expensed in conjunction with the refinancing of our 2010 Credit Facility and 2011 Credit Facility.

Issuance of Senior Subordinated Notes - On October 15, 2012 TransDigm Inc. issued $550 million in aggregate principal amount of its 5¹/₂% Senior Subordinated Notes due 2020 (the “2020 Notes”) at an issue price of 100% of the principal amount. The 2020 Notes bear interest at the rate of 5 ¹/₂% per annum, which accrues from October 15, 2012 and is payable semiannually in arrears on April 15 and October 15 of each year, commencing on April 15, 2013. The 2020 Notes mature on October 15, 2020, unless earlier redeemed or repurchased, and are subject to the terms and conditions as defined in the indenture governing the 2020 notes.

The 2020 Notes are subordinated to all of TransDigm’s existing and future senior debt, rank equally with all of its existing and future senior subordinated debt and rank senior to all of its future debt that is expressly subordinated to the 2020 Notes. The 2020 Notes are guaranteed on a senior subordinated unsecured basis by TD Group and its wholly-owned domestic subsidiaries named in the indenture. The guarantees of the 2020 Notes are subordinated to all of the guarantors’ existing and future senior debt, rank equally with all of their existing and future senior subordinated debt and rank senior to all of their future debt that is expressly subordinated to the guarantees of the 2020 Notes. The 2020 Notes are structurally subordinated to all of the liabilities of TD Group’s non-guarantor subsidiaries.

Special Cash Dividend - On October 15, 2012 the Company’s board of directors authorized and declared a special cash dividend of $12.85 on each outstanding share of common stock and cash dividend equivalent payments under its stock option plans. The special cash dividend amounting to approximately $664.3 million was paid in November 2012 and dividend equivalent payments amounting to approximately $35.4 million were paid in November and December 2012.

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Inventories

6 Months Ended

Mar. 30, 2013

Inventories

6. INVENTORIES

Inventories are stated at the lower of cost or market. Cost of inventories is determined by the average cost and the first-in, first-out (FIFO) methods for all locations except CEF Industries LLC, which determines the cost of inventories using the last-in, first-out (LIFO) method. Approximately 6% of the inventory was valued under the LIFO method at March 30, 2013.

Inventories consist of the following (in thousands):

	March 30, 2013			September 30, 2012
Raw materials and purchased component parts	$	226,475		$	203,809
Work-in-progress		101,008			102,645
Finished Goods		50,550			48,395
Total		378,033			354,849
Reserves for excess and obsolete inventory and LIFO		(37,858	)		(34,346	)
Inventories - net	$	340,175		$	320,503

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Intangible Assets

6 Months Ended

Mar. 30, 2013

Intangible Assets

7. INTANGIBLE ASSETS

Intangible assets subject to amortization consist of the following (in thousands):

	March 30, 2013						September 30, 2012
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Technology	$	721,282	$	122,954	$	598,328	$	723,231	$	105,995	$	617,236
Order backlog		3,954		3,877		77		5,910		3,965		1,945
Other		43,272		7,645		35,627		43,343		6,528		36,815
Total	$	768,508	$	134,476	$	634,032	$	772,484	$	116,488	$	655,996

Intangible assets acquired during the twenty-six week period ended March 30, 2013 were as follows (in thousands):

	Cost		Amortization Period
Intangible assets not subject to amortization:
Goodwill	$	5,485
Trademarks and trade names		350
		5,835
Intangible assets subject to amortization:
Technology		1,200		20 years
		1,200
Total	$	7,035

The aggregate amortization expense on identifiable intangible assets for the twenty-six week periods ended March 30, 2013 and March 31, 2012 was approximately $20.4 million and $21.9 million, respectively. The estimated amortization expense for fiscal 2013 is $38.2 million and $36.1 million for each of the five succeeding years 2014 through 2018.

The following is a summary of changes in the carrying value of goodwill from September 30, 2012 through March 30, 2013 (in thousands):

Balance, September 30, 2012	$	3,035,502
Goodwill acquired during the year		5,485
Other		(807	)
Balance, March 30, 2013	$	3,040,180

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Income Taxes

6 Months Ended

Mar. 30, 2013

Income Taxes

9. INCOME TAXES

At the end of each reporting period, TD Group makes an estimate of its annual effective income tax rate. The estimate used in the year-to-date period may change in subsequent periods. During the thirteen week periods ended March 30, 2013 and March 31, 2012, the effective income tax rate was 31.9% and 34.7%, respectively. The lower effective tax rate for the thirteen week period ended March 30, 2013 was primarily due to the retroactive reinstatement of the research and development tax credit and an increased benefit from the domestic manufacturing deduction. During the twenty-six week periods ended March 30, 2013 and March 31, 2012, the effective income tax rate was 32.2% and 33.7%, respectively. The lower effective tax rate for the twenty-six week period ended March 30, 2013 was primarily due to the factors referred to above.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction, various state and local jurisdictions as well as foreign jurisdictions located in Belgium, China, France, Malaysia, Mexico, Singapore, Sri Lanka and the United Kingdom. The Company is no longer subject to U.S. federal examinations for years before fiscal 2011. AmSafe is subject to U.S. federal examinations for the 2008, 2009, 2010 and 2011 years. In addition, the Company is subject to state income tax examinations for fiscal years 2009 and later.

At March 30, 2013 and September 30, 2012, TD Group had $7.1 million and $6.9 million in unrecognized tax benefits, the recognition of which would have an effect of approximately $6.5 million and $6.3 million on the effective tax rate at March 30, 2013 and September 30, 2012, respectively. The Company does not believe that the tax positions that comprise the unrecognized tax benefit amount will change significantly over the next 12 months. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in income tax expense.

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Intangible Assets Subjects to Amortization (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Sep. 30, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 768,508	$ 772,484
Accumulated Amortization	134,476	116,488
Net	634,032	655,996
Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	721,282	723,231
Accumulated Amortization	122,954	105,995
Net	598,328	617,236
Order backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,954	5,910
Accumulated Amortization	3,877	3,965
Net	77	1,945
Other intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	43,272	43,343
Accumulated Amortization	7,645	6,528
Net	$ 35,627	$ 36,815

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Acquisitions (Tables)

6 Months Ended

Mar. 30, 2013

Purchase Price Allocation Estimated Fair Values of Assets Acquired Liabilities Assumed

The following table summarizes the purchase price allocation of the estimated fair values of the assets acquired and liabilities assumed at the transaction date (in thousands).

Assets acquired:
Current assets, excluding cash acquired	$	122,694
Property, plant and equipment		20,787
Intangible assets		270,500
Goodwill		396,823
Other		15,614
Total assets acquired	$	826,418
Liabilities assumed:
Current liabilities	$	24,979
Deferred income taxes - long term		48,626
Other noncurrent liabilities		3,082
Total liabilities assumed	$	76,687
Net assets acquired	$	749,731

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Fair Value Measurements (Tables)

6 Months Ended

Mar. 30, 2013

Carrying Amounts and Fair Values of Financial Instruments

The following summarizes the carrying amounts and fair values of financial instruments (in thousands):

			March 30, 2013				September 30, 2012
	Level		Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents		1	$	680,024	$	680,024	$	440,524	$	440,524
Liabilities:
Interest rate swap agreements (1)		2		9,000		9,000		9,800		9,800
Long-term debt:
Term loans		2		2,194,500		2,217,000		2,019,125		2,037,000
7  3/4% Senior Subordinated Notes due 2018		1		1,600,000		1,752,000		1,600,000		1,696,000
5  1/2% Senior Subordinated Notes due 2020		1		550,000		572,000		—		—

(1) Included in Accrued liabilities on the Condensed Consolidated Balance Sheet.

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Supplemental Condensed Consolidating Statement Of Cash Flows (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Supplemental Guarantor Information [Line Items]
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	$ 197,289	$ 164,962
Capital expenditures	(16,316)	(9,109)
Acquisition of business, net of cash acquired	(8,501)	(833,512)
Cash proceeds from sale of investment	10,500
Cash proceeds from working capital settlement	134
Net cash provided by (used in) investing activities	(14,183)	(842,621)
Excess tax benefits related to share-based payment arrangements	40,044	24,231
Proceeds from exercise of stock options	12,919	7,316
Dividends paid	(702,406)	(3,299)
Proceeds from 2013 credit facility - net	2,191,127
Treasury stock purchased		(846)
Repayment on 2013 credit facility	(5,500)
Proceeds from 2011 credit facility - net	147,360	484,713
Repayment on 2011 credit facility	(2,169,125)	(9,000)
Proceeds from senior subordinated notes due 2020 - net	542,000
Net cash provided by (used in) financing activities	56,419	503,115
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(25)	(158)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	239,500	(174,702)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	440,524	376,183
CASH AND CASH EQUIVALENTS, END OF PERIOD	680,024	201,481
TransDigm Group
Supplemental Guarantor Information [Line Items]
Intercompany activities	644,459	(14,545)
Excess tax benefits related to share-based payment arrangements	40,044	24,231
Proceeds from exercise of stock options	12,919	7,316
Dividends paid	(702,406)	(3,299)
Treasury stock purchased		(846)
Net cash provided by (used in) financing activities	(4,984)	12,857
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(4,984)	12,857
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	20,100	5,695
CASH AND CASH EQUIVALENTS, END OF PERIOD	15,116	18,552
TransDigm Inc.
Supplemental Guarantor Information [Line Items]
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	(55,398)	(53,599)
Capital expenditures	(1,105)	(829)
Acquisition of business, net of cash acquired	(8,501)	(833,512)
Cash proceeds from sale of investment	10,500
Cash proceeds from working capital settlement	134
Net cash provided by (used in) investing activities	1,028	(834,341)
Intercompany activities	(408,158)	217,320
Proceeds from 2013 credit facility - net	2,191,127
Repayment on 2013 credit facility	(5,500)
Proceeds from 2011 credit facility - net	147,360	484,713
Repayment on 2011 credit facility	(2,169,125)	(9,000)
Proceeds from senior subordinated notes due 2020 - net	542,000
Net cash provided by (used in) financing activities	297,704	693,033
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	243,334	(194,907)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	406,891	360,074
CASH AND CASH EQUIVALENTS, END OF PERIOD	650,225	165,167
Subsidiary Guarantors
Supplemental Guarantor Information [Line Items]
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	240,872	215,749
Capital expenditures	(14,308)	(8,115)
Net cash provided by (used in) investing activities	(14,308)	(8,115)
Intercompany activities	(226,417)	(202,440)
Net cash provided by (used in) financing activities	(226,417)	(202,440)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	147	5,194
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	4,494	2,115
CASH AND CASH EQUIVALENTS, END OF PERIOD	4,641	7,309
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	4,885	2,116
Capital expenditures	(903)	(165)
Net cash provided by (used in) investing activities	(903)	(165)
Intercompany activities	(2,954)	361
Net cash provided by (used in) financing activities	(2,954)	361
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(25)	(158)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	1,003	2,154
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	9,039	8,299
CASH AND CASH EQUIVALENTS, END OF PERIOD	10,042	10,453
Elimination
Supplemental Guarantor Information [Line Items]
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	6,930	696
Intercompany activities	(6,930)	(696)
Net cash provided by (used in) financing activities	$ (6,930)	$ (696)

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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012	Sep. 30, 2012
Income Tax Contingency [Line Items]
Effective income tax rate	31.90%	34.70%	32.20%	33.70%
Unrecognized tax benefit	$ 7.1		$ 7.1		$ 6.9
Effect of unrecognized tax benefits on effective tax rate	$ 6.5		$ 6.5		$ 6.3

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Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Net income	$ 67,937	$ 81,552	$ 142,107	$ 146,657
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(8,995)	2,944	(6,943)	(697)
Interest rate swap agreements, net of tax	(330)	(600)	(330)	(1,300)
Other			(214)
Other comprehensive income (loss), net of tax	(9,325)	2,344	(7,487)	(1,997)
TOTAL COMPREHENSIVE INCOME	$ 58,612	$ 83,896	$ 134,620	$ 144,660

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Acquisitions

6 Months Ended

Mar. 30, 2013

Acquisitions

3. ACQUISITIONS

Aero-Instruments Co., LLC – On September 17, 2012, TransDigm Inc. acquired all of the outstanding equity interests in Aero-Instruments Co., LLC (“Aero-Instruments”), for approximately $34.6 million in cash, which includes a purchase price adjustment of $0.1 million received in the first quarter of fiscal 2013. Aero-Instruments designs and manufactures highly engineered air data sensors including pitot probes, pitot-static probes, static pressure ports, angle of attack, temperature sensors and flight test equipment for use primarily in the business jet and helicopter markets. These products fit well with TransDigm’s overall business direction. The Company expects that the approximately $22 million of goodwill recognized for the acquisition will be deductible for tax purposes.

AmSafe Global Holdings, Inc. – On February 15, 2012, TransDigm Inc. acquired all of the outstanding stock of AmSafe Global Holdings, Inc. (“AmSafe”), for approximately $749.7 million in cash, which includes a purchase price adjustment of $0.5 million paid in the third quarter of fiscal 2012. AmSafe is a leading supplier of innovative, highly engineered and proprietary safety and restraint equipment used primarily in the global aerospace industry. These products fit well with TransDigm’s overall business direction. The distribution business acquired as part of AmSafe was sold on August 16, 2012 for approximately $17.8 million in cash, which includes a working capital adjustment of $0.1 million received in the first quarter of fiscal 2013. The equity investment in C-Safe LLC acquired as part of AmSafe was sold in October 2012 for approximately $16.4 million, which consisted of $5.0 million in cash at closing and an $11.4 million short-term note receivable, of which $5.5 million was collected in the second quarter of fiscal 2013.

The total purchase price was allocated to the underlying assets acquired and liabilities assumed based upon management’s estimated fair values at the date of acquisition. To the extent the purchase price exceeded the estimated fair value of the net identifiable tangible and intangible assets acquired, such excess was allocated to goodwill. The following table summarizes the purchase price allocation of the estimated fair values of the assets acquired and liabilities assumed at the transaction date (in thousands).

Assets acquired:
Current assets, excluding cash acquired	$	122,694
Property, plant and equipment		20,787
Intangible assets		270,500
Goodwill		396,823
Other		15,614
Total assets acquired	$	826,418
Liabilities assumed:
Current liabilities	$	24,979
Deferred income taxes - long term		48,626
Other noncurrent liabilities		3,082
Total liabilities assumed	$	76,687
Net assets acquired	$	749,731

The Company expects that of the $397 million of goodwill recognized for the acquisition approximately $77 million will be deductible for tax purposes.

Harco Laboratories, Incorporated – On December 9, 2011, TransDigm Inc. acquired all of the outstanding stock of Harco Laboratories, Incorporated (“Harco”), for approximately $83.3 million in cash, which includes a purchase price adjustment of $0.4 million paid in the second quarter of fiscal 2012. Harco designs and manufactures highly engineered thermocouples, sensors, engine cable assemblies and related products for commercial aircraft. These products fit well with TransDigm’s overall business direction. The Company expects that the approximately $56 million of goodwill recognized for the acquisition will not be deductible for tax purposes.

The Company accounted for the acquisitions using the acquisition method and included the results of operations of the acquisitions in its consolidated financial statements from the effective date of each acquisition. The Company is in the process of obtaining a third-party valuation of certain tangible and intangible assets of Aero-Instruments, therefore, the values attributed to those acquired assets in the consolidated financial statements are subject to adjustment. Pro forma net sales and results of operations for the acquisitions had they occurred at the beginning of the applicable thirteen and twenty-six week periods ended March 30, 2013 or March 31, 2012, are not significant and, accordingly, are not provided.

The acquisitions strengthen and expand the Company’s position to design, produce and supply highly-engineered proprietary aerospace components in niche markets with significant aftermarket content and provide opportunities to create value through the application of our three core value-driven operating strategies (obtaining profitable new business, improving our cost structure, and providing highly engineered value-added products to customers). The purchase price paid for each acquisition reflects the current earnings before interest, taxes, depreciation and amortization (EBITDA) and cash flows, as well as, the future EBITDA and cash flows expected to be generated by the business, which are driven in most cases by the recurring aftermarket consumption over the life of a particular aircraft, estimated to be approximately 30 years.

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Supplemental Guarantor Information (Tables)

6 Months Ended

Mar. 30, 2013

Supplemental Condensed Consolidating Balance Sheet

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING BALANCE SHEET

AS OF MARCH 30, 2013

	TransDigm Group		TransDigm Inc.		Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	15,116	$	650,225	$	4,641	$	10,042	$	—		$	680,024
Trade accounts receivable - Net		—		14,750		211,755		17,442		(875	)		243,072
Inventories - Net		—		27,152		286,846		27,000		(823	)		340,175
Deferred income taxes		—		23,632		—		—		—			23,632
Prepaid expenses and other		—		29,148		8,104		3,503		—			40,755
Total current assets		15,116		744,907		511,346		57,987		(1,698	)		1,327,658
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		670,253		4,737,253		2,233,626		84,905		(7,726,037	)		—
PROPERTY, PLANT AND EQUIPMENT - Net		—		15,616		146,698		13,128		—			175,442
GOODWILL		—		64,462		2,900,328		75,390		—			3,040,180
TRADEMARKS AND TRADE NAMES		—		19,377		411,656		30,444		—			461,477
OTHER INTANGIBLE ASSETS - Net		—		7,836		594,757		31,439		—			634,032
DEBT ISSUE COSTS - Net		—		44,975		—		—		—			44,975
OTHER		—		2,714		7,204		407		3			10,328
TOTAL ASSETS	$	685,369	$	5,637,140	$	6,805,615	$	293,700	$	(7,727,732	)	$	5,694,092
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt	$	—	$	22,000	$	—	$	—	$	—		$	22,000
Accounts payable		—		10,070		53,897		10,611		(882	)		73,696
Accrued liabilities		—		94,491		61,076		7,998		—			163,565
Total current liabilities		—		126,561		114,973		18,609		(882	)		259,261
LONG-TERM DEBT		—		4,322,500		—		—		—			4,322,500
DEFERRED INCOME TAXES		—		361,288		—		—		—			361,288
OTHER NON-CURRENT LIABILITIES		—		38,535		25,833		1,306		—			65,674
Total liabilities		—		4,848,884		140,806		19,915		(882	)		5,008,723
STOCKHOLDERS’ EQUITY		685,369		788,256		6,664,809		273,785		(7,726,850	)		685,369
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	685,369	$	5,637,140	$	6,805,615	$	293,700	$	(7,727,732	)		$5,694,092

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING BALANCE SHEET

AS OF SEPTEMBER 30, 2012

	TransDigm Group		TransDigm Inc.		Subsidiary Guarantors			Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	20,100	$	406,891	$	4,494		$	9,039	$	—		$	440,524
Trade accounts receivable - Net		—		12,261		207,537			17,486		(1,501	)		235,783
Inventories - Net		—		23,410		272,180			25,397		(484	)		320,503
Deferred income taxes		—		29,134		—			—		—			29,134
Prepaid expenses and other		—		9,585		12,626			2,376		—			24,587
Total current assets		20,100		481,281		496,837			54,298		(1,985	)		1,050,531
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		1,198,734		4,720,602		2,055,938			43,745		(8,019,019	)		—
PROPERTY, PLANT AND EQUIPMENT - Net		—		15,685		144,177			12,875		—			172,737
GOODWILL		—		85,680		2,872,483			77,339		—			3,035,502
TRADEMARKS AND TRADE NAMES		—		19,377		416,490			31,747		—			467,614
OTHER INTANGIBLE ASSETS - Net		—		8,151		614,225			33,620		—			655,996
DEBT ISSUE COSTS - Net		—		62,190		—			—		—			62,190
OTHER		—		2,750		(27,249	)		39,546		—			15,047
TOTAL ASSETS	$	1,218,834	$	5,395,716	$	6,572,901		$	293,170	$	(8,021,004	)	$	5,459,617
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt	$	—	$	20,500	$	—		$	—	$	—		$	20,500
Accounts payable		—		10,068		54,054			11,553		(1,497	)		74,178
Accrued liabilities		—		68,808		64,250			6,179		—			139,237
Total current liabilities		—		99,376		118,304			17,732		(1,497	)		233,915
LONG-TERM DEBT		—		3,598,625		—			—		—			3,598,625
DEFERRED INCOME TAXES		—		356,896		—			—		—			356,896
OTHER NON-CURRENT LIABILITIES		—		24,083		26,480			784		—			51,347
Total liabilities		—		4,078,980		144,784			18,516		(1,497	)		4,240,783
STOCKHOLDERS’ EQUITY		1,218,834		1,316,736		6,428,117			274,654		(8,019,507	)		1,218,834
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,218,834	$	5,395,716	$	6,572,901		$	293,170	$	(8,021,004	)	$	5,459,617

Supplemental Condensed Consolidating Statement of Income

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF INCOME

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 30, 2013

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
NET SALES	$	—		$	52,286		$	789,907	$	57,361	$	(3,527	)	$	896,027
COST OF SALES		—			30,361			331,306		39,693		(3,190	)		398,170
GROSS PROFIT		—			21,925			458,601		17,668		(337	)		497,857
SELLING AND ADMINISTRATIVE EXPENSES		—			31,641			70,430		8,553		—			110,624
AMORTIZATION OF INTANGIBLE ASSETS		—			312			19,084		879		—			20,275
INCOME (LOSS) FROM OPERATIONS		—			(10,028	)		369,087		8,236		(337	)		366,958
INTEREST EXPENSE - Net		—			125,152			1,243		575		—			126,970
REFINANCING COSTS		—			30,281			—		—		—			30,281
EQUITY IN INCOME OF SUBSIDIARIES		(142,107	)		(236,038	)		—		—		378,145			—
INCOME BEFORE INCOME TAXES		142,107			70,577			367,844		7,661		(378,482	)		209,707
INCOME TAX PROVISION (BENEFIT)		—			(71,530	)		136,836		2,294		—			67,600
NET INCOME	$	142,107		$	142,107		$	231,008	$	5,367	$	(378,482	)	$	142,107

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF INCOME

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 31, 2012

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
NET SALES	$	—		$	52,136		$	692,146	$	35,029	$	(3,369	)	$	775,942
COST OF SALES		—			30,404			286,659		26,653		(3,369	)		340,347
GROSS PROFIT		—			21,732			405,487		8,376		—			435,595
SELLING AND ADMINISTRATIVE EXPENSES		—			28,330			58,395		4,599		—			91,324
AMORTIZATION OF INTANGIBLE ASSETS		—			312			20,792		674		—			21,778
INCOME (LOSS) FROM OPERATIONS		—			(6,910	)		326,300		3,103		—			322,493
INTEREST EXPENSE - Net		—			100,346			244		771		—			101,361
EQUITY IN INCOME OF SUBSIDIARIES		(146,657	)		(216,157	)		—		—		362,814			—
INCOME BEFORE INCOME TAXES		146,657			108,901			326,056		2,332		(362,814	)		221,132
INCOME TAX PROVISION (BENEFIT)		—			(37,756	)		111,227		1,004		—			74,475
NET INCOME	$	146,657		$	146,657		$	214,829	$	1,328	$	(362,814	)	$	146,657

Supplemental Condensed Consolidating Statement of Cash Flows

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 30, 2013

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors			Non- Guarantor Subsidiaries			Eliminations			Total Consolidated
NET CASH PROVIDED BY (USED IN)
OPERATING ACTIVITIES	$	—		$	(55,398	)	$	240,872		$	4,885		$	6,930		$	197,289
INVESTING ACTIVITIES:
Capital expenditures		—			(1,105	)		(14,308	)		(903	)		—			(16,316	)
Acquisition of business, net of cash acquired					(8,501	)		—			—			—			(8,501	)
Cash proceeds from sale of investment		—			10,500			—			—			—			10,500
Cash proceeds from working capital settlement		—			134			—			—			—			134
Net cash provided by (used in) investing activities		—			1,028			(14,308	)		(903	)		—			(14,183	)
FINANCING ACTIVITIES:
Intercompany activities		644,459			(408,158	)		(226,417	)		(2,954	)		(6,930	)		—
Excess tax benefits related to share-based payment arrangements		40,044			—			—			—			—			40,044
Proceeds from exercise of stock options		12,919			—			—			—			—			12,919
Dividends paid		(702,406	)		—			—			—			—			(702,406	)
Proceeds from 2013 credit facility - net		—			2,191,127			—			—			—			2,191,127
Repayment on 2013 credit facility		—			(5,500	)		—			—			—			(5,500	)
Proceeds from 2011 credit facility - net		—			147,360			—			—			—			147,360
Repayment on 2011 credit facility		—			(2,169,125	)		—			—			—			(2,169,125	)
Proceeds from senior subordinated notes due 2020 - net		—			542,000			—			—			—			542,000
Net cash provided by (used in) financing activities		(4,984	)		297,704			(226,417	)		(2,954	)		(6,930	)		56,419
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			(25	)		—			(25	)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		(4,984	)		243,334			147			1,003			—			239,500
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		20,100			406,891			4,494			9,039			—			440,524
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	15,116		$	650,225		$	4,641		$	10,042		$	—		$	680,024

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 31, 2012

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors			Non- Guarantor Subsidiaries			Eliminations			Total Consolidated
NET CASH PROVIDED BY (USED IN)
OPERATING ACTIVITIES	$	—		$	(53,599	)	$	215,749		$	2,116		$	696		$	164,962
INVESTING ACTIVITIES:
Capital expenditures		—			(829	)		(8,115	)		(165	)		—			(9,109	)
Acquisition of businesses, net of cash acquired		—			(833,512	)		—			—			—			(833,512	)
Net cash used in investing activities		—			(834,341	)		(8,115	)		(165	)		—			(842,621	)
FINANCING ACTIVITIES:
Intercompany activities		(14,545	)		217,320			(202,440	)		361			(696	)		—
Excess tax benefits related to share-based payment arrangements		24,231			—			—			—			—			24,231
Proceeds from exercise of stock options		7,316			—			—			—			—			7,316
Dividends paid		(3,299	)		—			—			—			—			(3,299	)
Treasury stock purchased		(846	)		—			—			—			—			(846	)
Proceeds from 2011 credit facility-net		—			484,713			—			—			—			484,713
Repayment on 2011 credit facility		—			(9,000	)		—			—			—			(9,000	)
Net cash provided by (used in) financing activities		12,857			693,033			(202,440	)		361			(696	)		503,115
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			(158	)		—			(158	)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		12,857			(194,907	)		5,194			2,154			—			(174,702	)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		5,695			360,074			2,115			8,299			—			376,183
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	18,552		$	165,167		$	7,309		$	10,453		$	—		$	201,481

XML

Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Sep. 30, 2012
Debt Instrument [Line Items]
Total debt outstanding	$ 4,344,500	$ 3,619,125
Less current portion	22,000	20,500
LONG-TERM DEBT	4,322,500	3,598,625
Term Loans
Debt Instrument [Line Items]
Debt instrument, outstanding	2,194,500	2,019,125
7 3/4% Senior Subordinated Notes, Due 2018
Debt Instrument [Line Items]
Debt instrument, outstanding	1,600,000	1,600,000
5 1/2% Senior Subordinated Notes, Due 2020
Debt Instrument [Line Items]
Debt instrument, outstanding	$ 550,000

XML

Supplemental Guarantor Information

6 Months Ended

Mar. 30, 2013

Supplemental Guarantor Information

13. SUPPLEMENTAL GUARANTOR INFORMATION

TransDigm’s 7³/₄% Senior Subordinated Notes due 2018 and 5¹/₂% Senior Subordinated Notes due 2020 are jointly and severally guaranteed, on a senior subordinated basis, by TD Group and TransDigm Inc.’s 100% owned Domestic Restricted Subsidiaries, as defined in the indentures. The following supplemental condensed consolidating financial information presents, in separate columns, the balance sheets of the Company as of March 30, 2013 and September 30, 2012 and its statements of income and cash flows for the twenty-six week periods ended March 30, 2013 and March 31, 2012 for (i) TransDigm Group on a parent only basis with its investment in subsidiaries recorded under the equity method, (ii) TransDigm Inc. including its directly owned operations and non-operating entities, (iii) the Subsidiary Guarantors on a combined basis, (iv) Non-Guarantor Subsidiaries and (v) the Company on a consolidated basis.

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING BALANCE SHEET

AS OF MARCH 30, 2013

	TransDigm Group		TransDigm Inc.		Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	15,116	$	650,225	$	4,641	$	10,042	$	—		$	680,024
Trade accounts receivable - Net		—		14,750		211,755		17,442		(875	)		243,072
Inventories - Net		—		27,152		286,846		27,000		(823	)		340,175
Deferred income taxes		—		23,632		—		—		—			23,632
Prepaid expenses and other		—		29,148		8,104		3,503		—			40,755
Total current assets		15,116		744,907		511,346		57,987		(1,698	)		1,327,658
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		670,253		4,737,253		2,233,626		84,905		(7,726,037	)		—
PROPERTY, PLANT AND EQUIPMENT - Net		—		15,616		146,698		13,128		—			175,442
GOODWILL		—		64,462		2,900,328		75,390		—			3,040,180
TRADEMARKS AND TRADE NAMES		—		19,377		411,656		30,444		—			461,477
OTHER INTANGIBLE ASSETS - Net		—		7,836		594,757		31,439		—			634,032
DEBT ISSUE COSTS - Net		—		44,975		—		—		—			44,975
OTHER		—		2,714		7,204		407		3			10,328
TOTAL ASSETS	$	685,369	$	5,637,140	$	6,805,615	$	293,700	$	(7,727,732	)	$	5,694,092
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt	$	—	$	22,000	$	—	$	—	$	—		$	22,000
Accounts payable		—		10,070		53,897		10,611		(882	)		73,696
Accrued liabilities		—		94,491		61,076		7,998		—			163,565
Total current liabilities		—		126,561		114,973		18,609		(882	)		259,261
LONG-TERM DEBT		—		4,322,500		—		—		—			4,322,500
DEFERRED INCOME TAXES		—		361,288		—		—		—			361,288
OTHER NON-CURRENT LIABILITIES		—		38,535		25,833		1,306		—			65,674
Total liabilities		—		4,848,884		140,806		19,915		(882	)		5,008,723
STOCKHOLDERS’ EQUITY		685,369		788,256		6,664,809		273,785		(7,726,850	)		685,369
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	685,369	$	5,637,140	$	6,805,615	$	293,700	$	(7,727,732	)		$5,694,092

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING BALANCE SHEET

AS OF SEPTEMBER 30, 2012

	TransDigm Group		TransDigm Inc.		Subsidiary Guarantors			Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	20,100	$	406,891	$	4,494		$	9,039	$	—		$	440,524
Trade accounts receivable - Net		—		12,261		207,537			17,486		(1,501	)		235,783
Inventories - Net		—		23,410		272,180			25,397		(484	)		320,503
Deferred income taxes		—		29,134		—			—		—			29,134
Prepaid expenses and other		—		9,585		12,626			2,376		—			24,587
Total current assets		20,100		481,281		496,837			54,298		(1,985	)		1,050,531
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		1,198,734		4,720,602		2,055,938			43,745		(8,019,019	)		—
PROPERTY, PLANT AND EQUIPMENT - Net		—		15,685		144,177			12,875		—			172,737
GOODWILL		—		85,680		2,872,483			77,339		—			3,035,502
TRADEMARKS AND TRADE NAMES		—		19,377		416,490			31,747		—			467,614
OTHER INTANGIBLE ASSETS - Net		—		8,151		614,225			33,620		—			655,996
DEBT ISSUE COSTS - Net		—		62,190		—			—		—			62,190
OTHER		—		2,750		(27,249	)		39,546		—			15,047
TOTAL ASSETS	$	1,218,834	$	5,395,716	$	6,572,901		$	293,170	$	(8,021,004	)	$	5,459,617
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt	$	—	$	20,500	$	—		$	—	$	—		$	20,500
Accounts payable		—		10,068		54,054			11,553		(1,497	)		74,178
Accrued liabilities		—		68,808		64,250			6,179		—			139,237
Total current liabilities		—		99,376		118,304			17,732		(1,497	)		233,915
LONG-TERM DEBT		—		3,598,625		—			—		—			3,598,625
DEFERRED INCOME TAXES		—		356,896		—			—		—			356,896
OTHER NON-CURRENT LIABILITIES		—		24,083		26,480			784		—			51,347
Total liabilities		—		4,078,980		144,784			18,516		(1,497	)		4,240,783
STOCKHOLDERS’ EQUITY		1,218,834		1,316,736		6,428,117			274,654		(8,019,507	)		1,218,834
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,218,834	$	5,395,716	$	6,572,901		$	293,170	$	(8,021,004	)	$	5,459,617

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF INCOME

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 30, 2013

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
NET SALES	$	—		$	52,286		$	789,907	$	57,361	$	(3,527	)	$	896,027
COST OF SALES		—			30,361			331,306		39,693		(3,190	)		398,170
GROSS PROFIT		—			21,925			458,601		17,668		(337	)		497,857
SELLING AND ADMINISTRATIVE EXPENSES		—			31,641			70,430		8,553		—			110,624
AMORTIZATION OF INTANGIBLE ASSETS		—			312			19,084		879		—			20,275
INCOME (LOSS) FROM OPERATIONS		—			(10,028	)		369,087		8,236		(337	)		366,958
INTEREST EXPENSE - Net		—			125,152			1,243		575		—			126,970
REFINANCING COSTS		—			30,281			—		—		—			30,281
EQUITY IN INCOME OF SUBSIDIARIES		(142,107	)		(236,038	)		—		—		378,145			—
INCOME BEFORE INCOME TAXES		142,107			70,577			367,844		7,661		(378,482	)		209,707
INCOME TAX PROVISION (BENEFIT)		—			(71,530	)		136,836		2,294		—			67,600
NET INCOME	$	142,107		$	142,107		$	231,008	$	5,367	$	(378,482	)	$	142,107

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF INCOME

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 31, 2012

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors		Non-Guarantor Subsidiaries		Eliminations			Total Consolidated
NET SALES	$	—		$	52,136		$	692,146	$	35,029	$	(3,369	)	$	775,942
COST OF SALES		—			30,404			286,659		26,653		(3,369	)		340,347
GROSS PROFIT		—			21,732			405,487		8,376		—			435,595
SELLING AND ADMINISTRATIVE EXPENSES		—			28,330			58,395		4,599		—			91,324
AMORTIZATION OF INTANGIBLE ASSETS		—			312			20,792		674		—			21,778
INCOME (LOSS) FROM OPERATIONS		—			(6,910	)		326,300		3,103		—			322,493
INTEREST EXPENSE - Net		—			100,346			244		771		—			101,361
EQUITY IN INCOME OF SUBSIDIARIES		(146,657	)		(216,157	)		—		—		362,814			—
INCOME BEFORE INCOME TAXES		146,657			108,901			326,056		2,332		(362,814	)		221,132
INCOME TAX PROVISION (BENEFIT)		—			(37,756	)		111,227		1,004		—			74,475
NET INCOME	$	146,657		$	146,657		$	214,829	$	1,328	$	(362,814	)	$	146,657

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 30, 2013

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors			Non- Guarantor Subsidiaries			Eliminations			Total Consolidated
NET CASH PROVIDED BY (USED IN)
OPERATING ACTIVITIES	$	—		$	(55,398	)	$	240,872		$	4,885		$	6,930		$	197,289
INVESTING ACTIVITIES:
Capital expenditures		—			(1,105	)		(14,308	)		(903	)		—			(16,316	)
Acquisition of business, net of cash acquired					(8,501	)		—			—			—			(8,501	)
Cash proceeds from sale of investment		—			10,500			—			—			—			10,500
Cash proceeds from working capital settlement		—			134			—			—			—			134
Net cash provided by (used in) investing activities		—			1,028			(14,308	)		(903	)		—			(14,183	)
FINANCING ACTIVITIES:
Intercompany activities		644,459			(408,158	)		(226,417	)		(2,954	)		(6,930	)		—
Excess tax benefits related to share-based payment arrangements		40,044			—			—			—			—			40,044
Proceeds from exercise of stock options		12,919			—			—			—			—			12,919
Dividends paid		(702,406	)		—			—			—			—			(702,406	)
Proceeds from 2013 credit facility - net		—			2,191,127			—			—			—			2,191,127
Repayment on 2013 credit facility		—			(5,500	)		—			—			—			(5,500	)
Proceeds from 2011 credit facility - net		—			147,360			—			—			—			147,360
Repayment on 2011 credit facility		—			(2,169,125	)		—			—			—			(2,169,125	)
Proceeds from senior subordinated notes due 2020 - net		—			542,000			—			—			—			542,000
Net cash provided by (used in) financing activities		(4,984	)		297,704			(226,417	)		(2,954	)		(6,930	)		56,419
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			(25	)		—			(25	)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		(4,984	)		243,334			147			1,003			—			239,500
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		20,100			406,891			4,494			9,039			—			440,524
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	15,116		$	650,225		$	4,641		$	10,042		$	—		$	680,024

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 31, 2012

(Amounts in thousands)

	TransDigm Group			TransDigm Inc.			Subsidiary Guarantors			Non- Guarantor Subsidiaries			Eliminations			Total Consolidated
NET CASH PROVIDED BY (USED IN)
OPERATING ACTIVITIES	$	—		$	(53,599	)	$	215,749		$	2,116		$	696		$	164,962
INVESTING ACTIVITIES:
Capital expenditures		—			(829	)		(8,115	)		(165	)		—			(9,109	)
Acquisition of businesses, net of cash acquired		—			(833,512	)		—			—			—			(833,512	)
Net cash used in investing activities		—			(834,341	)		(8,115	)		(165	)		—			(842,621	)
FINANCING ACTIVITIES:
Intercompany activities		(14,545	)		217,320			(202,440	)		361			(696	)		—
Excess tax benefits related to share-based payment arrangements		24,231			—			—			—			—			24,231
Proceeds from exercise of stock options		7,316			—			—			—			—			7,316
Dividends paid		(3,299	)		—			—			—			—			(3,299	)
Treasury stock purchased		(846	)		—			—			—			—			(846	)
Proceeds from 2011 credit facility-net		—			484,713			—			—			—			484,713
Repayment on 2011 credit facility		—			(9,000	)		—			—			—			(9,000	)
Net cash provided by (used in) financing activities		12,857			693,033			(202,440	)		361			(696	)		503,115
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			(158	)		—			(158	)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		12,857			(194,907	)		5,194			2,154			—			(174,702	)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		5,695			360,074			2,115			8,299			—			376,183
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	18,552		$	165,167		$	7,309		$	10,453		$	—		$	201,481