SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Vuono Carl E

(Last)

(First)

(Middle)

600 THIRD AVENUE

(Street)

NEW YORK

10016

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/15/2006

3. Issuer Name and Ticker or Trading Symbol
L 3 COMMUNICATIONS HOLDINGS INC [ LLL ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Sr VP, Grp Pres/COO

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	973⁽¹⁾	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
7/31/00 Stock Option	⁽²⁾	07/31/2010	Common Stock	40,000	$29	D
7/12/01 Stock Option	⁽²⁾	07/12/2011	Common Stock	12,000	$34	D
3/25/02 Stock Option	⁽²⁾	03/25/2012	Common Stock	12,000	$53.745	D
11/14/2003 Stock Option	⁽²⁾	11/14/2013	Common Stock	20,000	$45.8	D
7/12/2005 Stock Option	⁽²⁾	07/12/2015	Common Stock	21,250	$74.94	D
8/2/2006 Stock Option	⁽²⁾	08/02/2016	Common Stock	15,000	$72.2	D

Explanation of Responses:

1. Does not include options to purchase 84,417 shares of common stock, which options are exercisable within 60 days of August 15, 2006.

2. These options vest(ed) in annual one-third increments over the three-year period following the date of issuance.

	/s/ Christopher C. Cambria	08/16/2006
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.