Exhibit 23



              CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS


We have issued our report dated February 19, 1999, accompanying the
consolidated financial statements included in the Annual Report of Aydin
Corporation and subsidiaries in this Form 8K/A for the year ended December 31,
1998. We hereby consent to the incorporation by reference of said reports in
the Registration Statement of L-3 Communications Holdings, Inc. on Form S-8
(File No. 333-64389 effective September 25, 1998 and File No. 333-59281
effective July 17, 1998.






GRANT THORNTON LLP
Philadelphia, Pennsylvania
May 10, 1999