Exhibit 25.1

FORM T-1

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

STATEMENT OF ELIGIBILITY
UNDER THE TRUST INDENTURE ACT OF 1939 OF A
CORPORATION DESIGNATED TO ACT AS TRUSTEE

CHECK IF AN APPLICATION TO DETERMINE
ELIGIBILITY OF A TRUSTEE PURSUANT TO
SECTION 305(b)(2)           o

THE BANK OF NEW YORK TRUST COMPANY, N.A.

(Exact name of trustee as specified in its charter)

	95-3571558
(State of incorporation if not a U.S. national bank)	(I.R.S. employer identification no.)
700 South Flower Street Suite 500
Los Angeles, California	90017
(Address of principal executive offices)	(Zip code)

TRANSDIGM INC.

(Exact name of obligor as specified in its charter)

Delaware	34-1750032
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
1301 East 9th Street
Suite 3710
Cleveland, Ohio	44114
(Address of principal executive offices)	(Zip code)

TRANSDIGM GROUP INCORPORATED

(Exact name of obligor as specified in its charter)

Delaware	51-0484716
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
1301 East 9th Street
Suite 3710
Cleveland, Ohio	44114
(Address of principal executive offices)	(Zip code)

CHAMPION AEROSPACE INC.

(Exact name of obligor as specified in its charter)

Delaware	58-2623644
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
1230 Old Norris Road
Liberty, South Carolina	29657
(Address of principal executive offices)	(Zip code)

ZMP, INC.

(Exact name of obligor as specified in its charter)

California	95-4056651
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
4141 North Palm Street
Fullerton, California	92635
(Address of principal executive offices)	(Zip code)

ADAMS RITE AEROSPACE, INC.

(Exact name of obligor as specified in its charter)

California	95-4056812
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
4141 North Palm Street
Fullerton, California	92835
(Address of principal executive offices)	(Zip code)

CHRISTIE ELECTRIC CORP.

(Exact name of obligor as specified in its charter)

California	95-0987760
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
8301 Imperial Drive
Waco, Texas	76712
(Address of principal executive offices)	(Zip code)

MARATHONNORCO AEROSPACE, INC.

(formerly Marathon Power Technologies Company)

(Exact name of obligor as specified in its charter)

Delaware	74-2707437
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
8301 Imperial Drive
Waco, Texas	76712
(Address of principal executive offices)	(Zip code)

AVIONIC INSTRUMENTS INC.

(Exact name of obligor as specified in its charter)

Delaware	13-2666109
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
1414 Randolph Avenue
Avenel, New Jersey	07001-2402
(Address of principal executive offices)	(Zip code)

DAC REALTY CORP.

(Exact name of obligor as specified in its charter)

New Jersey	11-2821284
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
1414 Randolph Avenue
Avenel, New Jersey	07001-2402
(Address of principal executive offices)	(Zip code)

SKURKA AEROSPACE INC.

(Exact name of obligor as specified in its charter)

Delaware	20-2042650
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
4600 Calle Bolero
P.O. Box 2869
Camarillo, California	93011-2869
(Address of principal executive offices)	(Zip code)

SWEENEY ENGINEERING CORP.

(Exact name of obligor as specified in its charter)

California	95-3561481
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
17224 Gramercy Place
Gardena, California	90247-5211
(Address of principal executive offices)	(Zip code)

CDA INTERCORP.

(Exact name of obligor as specified in its charter)

Florida	59-1285683
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)
450 Goolsby Blvd.
Deerfield, Florida	33442
(Address of principal executive offices)	(Zip code)

7¾% Senior Subordinated Notes due 2014

(Title of the indenture securities)

1.General information. Furnish the following information as to the trustee:

(a)Name and address of each examining or supervising authority to which it is subject.

Name	Address
Comptroller of the Currency United States Department of the Treasury	Washington, D.C. 20219
Federal Reserve Bank	San Francisco, California 94105
Federal Deposit Insurance Corporation	Washington, D.C. 20429

(b)Whether it is authorized to exercise corporate trust powers.

Yes.

2.Affiliations with Obligor.

If the obligor is an affiliate of the trustee, describe each such affiliation.

None.

16.List of Exhibits.

Exhibits identified in parentheses below, on file with the Commission, are incorporated herein by reference as an exhibit hereto, pursuant to Rule 7a-29 under the Trust Indenture Act of 1939 (the “Act”) and 17 C.F.R. 229.10(d).

1.A copy of the articles of association of The Bank of New York Trust Company, N.A. (Exhibit 1 to Form T-1 filed with Registration Statement No. 333-121948).

2.A copy of certificate of authority of the trustee to commence business. (Exhibit 2 to Form T-1 filed with Registration Statement No. 333-121948).

3.A copy of the authorization of the trustee to exercise corporate trust powers. (Exhibit 3 to Form T-1 filed with Registration Statement No. 333-121948).

4.A copy of the existing by-laws of the trustee. (Exhibit 4 to Form T-1 filed with Registration Statement No. 333-121948).

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6.The consent of the trustee required by Section 321(b) of the Act. (Exhibit 6 to Form T-1 filed with Registration Statement No. 333-121948).

7.A copy of the latest report of condition of the Trustee published pursuant to law or to the requirements of its supervising or examining authority.

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SIGNATURE

Pursuant to the requirements of the Act, the trustee, The Bank of New York Trust Company, N.A., a banking association organized and existing under the laws of the United States of America, has duly caused this statement of eligibility to be signed on its behalf by the undersigned, thereunto duly authorized, all in The City of Chicago, and State of Illinois, on the 24th day of October, 2006.

THE BANK OF NEW YORK TRUST COMPANY, N.A.
By:	/S/  R. ELLWANGER
Name:	R. ELLWANGER
Title:	ASSISTANT VICE PRESIDENT

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EXHIBIT 7

Consolidated Report of Condition of

THE BANK OF NEW YORK TRUST COMPANY, N.A.

of 700 South Flower Street, Suite 200, Los Angeles, CA 90017

At the close of business June 30, 2006, published in accordance with Federal regulatory authority instructions.

	Dollar Amounts
	in Thousands
ASSETS
Cash and balances due from depository institutions:
Noninterest-bearing balances and currency and coin	3,885
Interest-bearing balances	0
Securities:
Held-to-maturity securities	63
Available-for-sale securities	64,252
Federal funds sold and securities purchased under agreements to resell:
Federal funds sold	49,300
Securities purchased under agreements to resell	115,000
Loans and lease financing receivables:
Loans and leases held for sale	0
Loans and leases, net of unearned income	0
LESS: Allowance for loan and lease losses	0
Loans and leases, net of unearned income and allowance	0
Trading assets	0
Premises and fixed assets (including capitalized leases)	3,897
Other real estate owned	0
Investments in unconsolidated subsidiaries and associated companies	0
Not applicable
Intangible assets:
Goodwill	267,487
Other Intangible Assets	15,747
Other assets	39,669
Total assets	$	559,300

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LIABILITIES
Deposits:
In domestic offices	2,420
Noninterest-bearing	2,420
Interest-bearing	0
Not applicable
Federal funds purchased and securities sold under agreements to repurchase:
Federal funds purchased	0
Securities sold under agreements to repurchase	0
Trading liabilities	0
Other borrowed money:
(includes mortgage indebtedness and obligations under capitalized leases)	58,000
Not applicable
Not applicable
Subordinated notes and debentures	0
Other liabilities	79,825
Total liabilities	140,245
Minority interest in consolidated subsidiaries	0
EQUITY CAPITAL
Perpetual preferred stock and related surplus	0
Common stock	1,000
Surplus (exclude all surplus related to preferred stock)	321,520
Retained earnings	96,770
Accumulated other comprehensive income	(235	)
Other equity capital components	0
Total equity capital	419,055
Total liabilities, minority interest, and equity capital (sum of items 21, 22, and 28)	559,300

I, William J. Winkelmann, Vice President of the above-named bank do hereby declare that the Reports of Condition and Income (including the supporting schedules) for this report date have been prepared in conformance with the instructions issued by the appropriate Federal regulatory authority and are true to the best of my knowledge and belief.

William J. Winkelmann)Vice President

We, the undersigned directors (trustees), attest to the correctness of the Report of Condition (including the supporting schedules) for this report date and declare that it has been examined by us and to the best of our knowledge and belief has been prepared in conformance with the instructions issued by the appropriate Federal regulatory authority and is true and correct.

Michael K. Klugman, President	)
Michael F. McFadden, MD	)	Directors (Trustees)
Frank P. Sulzberger, Vice President	)

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