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

                                  SCHEDULE 13D
                                 Amendment No. 3

                    Under the Securities Exchange Act of 1934

                        L-3 COMMUNICATIONS HOLDINGS, INC.
                                (Name of Issuer)

                          Common Stock, par value $0.01
                         (Title of Class of Securities)

                                  502424104000
                                 (CUSIP Number)

                                 Jennifer Marre
                               Vice President and
                                    Secretary

                          Lehman Brothers Holdings Inc.

                     3 World Financial Center, 7th Floor
                               New York, NY 10285
                                  (212)526-2728
            (Name, Address and Telephone Number of Person Authorized
                                       to

                       Receive Notice and Communications)

                                 August 31, 2000

             (Date of Event which required Filing of This Statement)



If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

502424104000 1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person Lehman Brothers Holdings Inc. 13-3216325 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(E) [ ] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 0 8) Shared Voting Power 5,501,027 9) Sole Dispositive Power 0 10) Shared Dispositive Power 5,501,027 11) Aggregate Amount Beneficially Owned by Each Reporting Person 5,501,027 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 16.9% 14) Type of Reporting Person HC/CO

CUSIP No. 502424104000 1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person Lehman Brothers Inc. 13-2518466 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Requires Pursuant to Items 2(d) or 2(E) [X] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 0 8) Shared Voting Power 109,462 9) Sole Dispositive Power 0 10) Shared Dispositive Power 109,462 11) Aggregate Amount Beneficially Owned by Each Reporting Person 109,462 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 0.3% 14) Type of Reporting Person BD/CO

1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person LB I Group Inc. 13-2741778 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Requires Pursuant to Items 2(d) or 2(E) [ ] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 0 8) Shared Voting Power 109,462 9) Sole Dispositive Power 0 10) Shared Dispositive Power 109,462 11) Aggregate Amount Beneficially Owned by Each Reporting Person 109,462 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 0.3% 14) Type of Reporting Person CO

CUSIP No. 502424104000 1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person Lehman ALI Inc. 13-3695935 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Requires Pursuant to Items 2(d) or 2(E) [ ] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 0 8) Shared Voting Power 2,390,784 9) Sole Dispositive Power 0 10) Shared Dispositive Power 2,390,784 11) Aggregate Amount Beneficially Owned by Each Reporting Person 2,390,784 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 7.3% 14) Type of Reporting Person CO

CUSIP No. 502424104000 1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person Property Asset Management Inc. 13-3555152 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Requires Pursuant to Items 2(d) or 2(E) [ ] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 2,390,784 8) Shared Voting Power 0 9) Sole Dispositive Power 2,390,784 10) Shared Dispositive Power 0 11) Aggregate Amount Beneficially Owned by Each Reporting Person 2,390,784 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 7.3% 14) Type of Reporting Person CO

CUSIP No. 502424104000 1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person Lehman Brothers Capital Partners III, L.P. 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(E) [ ] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 3,000,781 8) Shared Voting Power 0 9) Sole Dispositive Power 3,000,781 10) Shared Dispositive Power 0 11) Aggregate Amount Beneficially Owned by Each Reporting Person 3,000,781 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 9.2% 14) Type of Reporting Person LP

CUSIP No. 502424104000 1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person Lehman Brothers MBG Partners 1997 (A)L.P. 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Requires Pursuant to Items 2(d) or 2(E) [ ] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 84,344 8) Shared Voting Power 0 9) Sole Dispositive Power 84,344 10) Shared Dispositive Power 0 11) Aggregate Amount Beneficially Owned by Each Reporting Person 84,344 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 0.26% 14) Type of Reporting Person LP

CUSIP No. 502424104000 1) Names of Reporting Person S.S. or I.R.S. Identification No. of Above Person Lehman Brothers MBG Partners 1997 (B) L.P. 2) Check the Appropriate box if a Member of a Group (see instructions) (a) [x ] (b) [ ] 3) SEC Use Only 4) Source of Funds (see instructions) OO 5) Check Box if Disclosure of Legal Proceedings is Requires Pursuant to Items 2(d) or 2(E) [ ] 6) Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 7) Sole Voting Power 25,118 8) Shared Voting Power 0 9) Sole Dispositive Power 25,118 10) Shared Dispositive Power 0 11) Aggregate Amount Beneficially Owned by Each Reporting Person 25,118 12) Check if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] 13) Percent of Class Represented by Amount in Row 9 0.08% 14) Type of Reporting Person LP

Schedule 13D Item 1. Security and Issuer No Change. Item 2. Identity and Background This statement is filed jointly on behalf of the following entities: Lehman Brothers Holdings Inc., a Delaware corporation ("Holdings"), 3 World Financial Center 200 Vesey Street New York, NY 10285 Holdings through its domestic and foreign subsidiaries is a full- line securities firm and is General Partner of Lehman Brothers Capital Partners III, L.P. Lehman Brothers Inc., a Delaware corporation ("LBI"), 3 World Financial Center 200 Vesey Street New York, NY 10285 LBI is a wholly owned subsidiary of Holdings and is the parent of LB I Group Inc. LB I Group Inc., a Delaware corporation, ("LB I Group"), 3 World Financial Center 200 Vesey Street New York, NY 10285 LB I Group is a wholly owned subsidiary of LBI and is the General Partner of Lehman Brothers MBG Partners 1997 (A) L.P. and Lehman Brothers MBG Partners 1997 (B) L.P. Lehman ALI Inc., a Delaware corporation, ("ALI"), 3 World Financial Center 200 Vesey Street New York, NY 10285 ALI is a wholly owned subsidiary of Holdings and is the parent of Property Asset Management Inc. Property Asset Management Inc., a Delaware corporation, ("PAMI"), 3 World Financial Center 200 Vesey Street New York, NY 10285 PAMI is a wholly owned subsidiary of ALI. Lehman Brothers Capital Partners III, L.P., a Delaware limited partnership ("Capital Partners"), 3 World Financial Center 200 Vesey Street New York, NY 10285 Capital Partners is a limited partnership. Lehman Brothers MBG Partners 1997 (A) L.P., a Delaware limited partnership ("MBG Partners (A)"), 3 World Financial Center 200 Vesey Street New York, NY 10285 MBG Partners (A) is a limited partnership. Lehman Brothers MBG Partners 1997 (B) L.P. a Delaware limited partnership ("MBG Partners (B)"), 3 World Financial Center 200 Vesey Street New York, NY 10285 MBG Partners (B) is a limited partnership. The names, residence or business addresses, citizenships and present principal occupations or employment of the senior executive officers and directors of the Reporting Persons are set forth in Appendix A hereto. Neither the Reporting Persons nor to the best knowledge of the Reporting Persons any of the persons listed in Appendix A hereto have during the last five years (i) been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) except as set forth in Appendix B attached hereto and incorporated herein by reference has been party to a civil proceeding of a judicial or administrative body of a competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. Item 3. Source of Funds or Other Consideration No change. Item 4. Purpose of Transaction No change. Item 5. Interest in Securities of the Issuer No Change. Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer. No Change. Item 7. Material to be Filed as Exhibits. No change.

After reasonable inquiry and to the best of my knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct. Dated: August 8, 2000 LEHMAN BROTHERS HOLDINGS INC. By: /s/ Jennifer Marre --------------------- Name: Jennifer Marre Title: Vice President and Secretary LEHMAN BROTHERS INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Senior Vice President and Secretary LB I GROUP INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Secretary LEHMAN ALI INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Secretary PROPERTY ASSET MANAGEMENT INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Vice President and Secretary LEHMAN BROTHERS CAPITAL PARTNERS III, L.P. By: /s/ Jennifer Marre --------------------- Name: Jennifer Marre Title: Authorized Signatory LEHMAN BROTHERS MBG PARTNERS 1997 (A) L.P. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Authorized Signatory LEHMAN BROTHERS MBG PARTNERS 1997 (B) L.P. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Authorized Signatory

Appendix A LEHMAN BROTHERS HOLDINGS INC. BOARD OF DIRECTORS NAME/TITLE BUSINESS ADDRESS MICHAEL L. AINSLIE Lehman Brothers Holdings Inc. Private Investor and former 3 World Financial Center President and Chief Executive New York, NY 10285 Officer of Sotheby's Holdings JOHN F. AKERS Lehman Brothers Holdings Inc. Retired Chairman of International 3 World Financial Center Business Machines Corporation New York, NY 10285 ROGER S. BERLIND Lehman Brothers Holdings Inc. Theatrical Producer 3 World Financial Center New York, NY 10285 THOMAS H. CRUIKSHANK Lehman Brothers Holdings Inc. Retired Chairman and Chief Executive 3 World Financial Center Officer of Halliburton Company New York, NY 10285 RICHARD S. FULD, JR. Lehman Brothers Holdings Inc. Chairman and Chief Executive Officer 3 World Financial Center of Lehman Brothers Holdings Inc. New York, NY 10285 HENRY KAUFMAN Lehman Brothers Holdings Inc. President of Henry Kaufman 3 World Financial Center & Company, Inc. New York, NY 10285 JOHN D. MACOMBER Lehman Brothers Holdings Inc. Principal of JDM Investment Group 3 World Financial Center New York, NY 10285 DINA MERRILL Lehman Brothers Holdings Inc. Director and Vice Chairman 3 World Financial Center of RKO Pictures, Inc. New York, NY 10285 and Actress ___ All above individuals are citizens of the United States.

LEHMAN BROTHERS HOLDINGS INC. EXECUTIVE OFFICERS NAME/TITLE BUSINESS ADDRESS RICHARD S. FULD, JR. Lehman Brothers Holdings Inc. Chairman and Chief Executive Officer 3 World Financial Center of Lehman Brothers Holdings Inc. New York, NY 10285 DAVID GOLDFARB Lehman Brothers Holdings Inc. Chief Financial Officer 3 World Financial Center New York, NY 10285 JOSEPH M. GREGORY Lehman Brothers Holdings Inc. Chief Administrative Officer 3 World Financial Center New York, NY 10285 THOMAS A. RUSSO Lehman Brothers Holdings Inc. Chief Legal Officer 3 World Financial Center New York, NY 10285 __ All above individuals are citizens of the United States.

LEHMAN BROTHERS INC. BOARD OF DIRECTORS NAME/TITLE BUSINESS ADDRESS ROGER S. BERLIND Lehman Brothers Holdings Inc. Theatrical Producer 3 World Financial Center New York, NY 10285 HOWARD L. CLARK, JR. Lehman Brothers Holdings Inc. Vice Chairman 3 World Financial Center New York, NY 10285 FREDERICK FRANK Lehman Brothers Holdings Inc. Vice Chairman 3 World Financial Center New York, NY 10285 RICHARD S. FULD, JR. Lehman Brothers Holdings Inc. Chairman and Chief Executive Officer 3 World Financial Center of Lehman Brothers Holdings Inc. New York, NY 10285 HARVEY M. KRUEGER Lehman Brothers Holdings Inc. Vice Chairman 3 World Financial Center New York, NY 10285 SHERMAN R. LEWIS, JR. Lehman Brothers Holdings Inc. Vice Chairman 3 World Financial Center New York, NY 10285 __ All above individuals are citizens of the United States.

LEHMAN BROTHERS INC. EXECUTIVE OFFICERS NAME/TITLE BUSINESS ADDRESS JON BEYMAN Lehman Brothers Holdings Inc. Chief Information Officer 3 World Financial Center New York, NY 10285 RICHARD S. FULD, JR. Lehman Brothers Holdings Inc. Chairman and Chief Executive Officer 3 World Financial Center of Lehman Brothers Holdings Inc. New York, NY 10285 DAVID GOLGFARB Lehman Brothers Holdings Inc. Chief Financial Officer 3 World Financial Center New York, NY 10285 JOSEPH M. GREGORY Lehman Brothers Holdings Inc. Chief Administrative Officer 3 World Financial Center New York, NY 10285 THOMAS A. RUSSO Lehman Brothers Holdings Inc. Chief Legal Officer 3 World Financial Center New York, NY 10285 __ All above individuals are citizens of the United States.

LB I GROUP INC. BOARD OF DIRECTORS NAME BUSINESS ADDRESS Rocco F. Andriola Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 David Goldfarb Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 Allan S. Kaplan Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285

LEHMAN ALI INC. BOARD OF DIRECTORS NAME/TITLE BUSINESS ADDRESS Kenneth C. Cohen Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 Neal B. Leonard Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 Mark A. Walsh Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 __ Above individuals are citizens of the United States.

PROPERTY ASSET MANAGEMENT INC. BOARD OF DIRECTORS NAME/TITLE BUSINESS ADDRESS Yon K. Cho Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 Kenneth C. Cohen Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 Mark A. Walsh Lehman Brothers Holdings Inc. 3 World Financial Center New York, NY 10285 __ Above individuals are citizens of the United States.

APPENDIX B Lehman Brothers has been involved in a number of civil proceedings which concern matters arising in connection with the conduct of its business. Certain of such proceedings have resulted in findings of violation of federal or state securities laws. Each of these proceedings was settled by Lehman Brothers consenting to the entry of an order without admitting or denying the allegations in the complaint. All of such proceedings are reported and summarized in the Schedule D to Lehman Brother's Form BD filed with the Securities and Exchange Commission, which descriptions are hereby incorporated by reference.

APPENDIX C Pursuant to Rule 13d-1(k)(1) of the Securities and Exchange Commission, the undersigned agree that the attached Schedule 13D is, and any future amendments thereto shall be, filed on behalf of each of us. Dated: August 31, 2000 LEHMAN BROTHERS HOLDINGS INC. By: /s/ Jennifer Marre --------------------- Name: Jennifer Marre Title: Vice President and Secretary LEHMAN BROTHERS INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Vice President and Secretary LB I GROUP INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Secretary LEHMAN ALI INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Secretary PROPERTY ASSET MANAGEMENT INC. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Vice President and Secretary LEHMAN BROTHERS CAPITAL PARTNERS III, L.P. By: /s/ Jennifer Marre --------------------- Name: Jennifer Marre Title: Authorized Signatory LEHMAN BROTHERS MBG PARTNERS 1997 (A) L.P. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Authorized Signatory LEHMAN BROTHERS MBG PARTNERS 1997 (B) L.P. By: /s/ Jennifer Marre ------------------- Name: Jennifer Marre Title: Authorized Signatory