L-3 Communication Systems-East Achieves Significant Industry Rating; Software Engineering Institute Capability Maturity Model Integration Level 3

Business Wire, July 20, 2005

NEW YORK -- L-3 Communications (NYSE: LLL) announced today that its Communication Systems-East (L-3 CS-East) division has been recognized by process experts as utilizing industry best practices mandated by Capability Maturity Model Integration (CMMI(R)) certification. L-3 CS-East is the first L-3 business to earn this important quality process distinction.

On June 30, 2005, L-3 CS-East was appraised at CMMI(R) Systems Engineering/Software Engineering (SE/SW) Version 1.1 Maturity Level 3, as defined by Carnegie Mellon Software Engineering Institute (SEI) using the Standard CMMI(R) Appraisal Method for Process Improvement (SCAMPI(SM)).

CMMI(R) is part of the SEI's national mandate to advance the state of the practice of software engineering and to serve as a national resource in software engineering and technology. The SEI is a federally funded research and development center sponsored by the U.S. Department of Defense (DoD) and operated by Carnegie Mellon University of Pittsburgh, PA. CMMI(R) is backed by the DoD and the National Defense Industrial Association (NDIA) and is viewed by the DoD as the de facto standard for best practices for organizations.

The CMMI(R) model for improving and appraising performance of development organizations provides precise and detailed benchmarking of process performance within and across organizations to help customers calibrate contractor capabilities. CMMI(R) outlines five levels of organizational maturity, each comprised of a defined set of process areas, according to the specific disciplines covered by that model.

From June 13 to June 30, 2005, a team of six appraisers conducted a CMMI(R)-based appraisal for process improvement at L-3 CS-East's Camden, NJ, facility. The appraisers conducted over 90 interviews and reviewed over 3,600 artifacts of program documentation from key programs and organizational process improvement activities.

This appraisal culminates 18 months of work by the L-3 CS-East team to improve development processes, and in doing so, better meet the requirements of its customers. L-3 CS-East adopted an enterprise-wide approach to the appraisal with an integrated set of processes spanning all product realization functions, including program management, engineering disciplines (i.e., systems, software, electrical and mechanical), associated manufacturing and product assurance.

"This assessment validates the quality of our current processes. Our goal is to meet or exceed our customers' requirements and expectations and to deliver the highest quality products and services in our served markets," said Greg Roberts, president of L-3 CS-East. "I would like to thank all of our employees for this great team effort. We look forward to adding two additional disciplines for our next assessment - Integrated Product and Process Development (IPPD) and Supplier Sourcing (SS), scheduled for early 2006."

"L-3 CS-East has done an outstanding job in codifying and enhancing its already sound engineering processes," said Patricia Mitryk, SEI authorized CMMI(R) lead appraiser. "As a testament to their ability to challenge themselves, the L-3 CS-East team integrated their engineering disciplines into the appraisal to ensure a solid foundation for standardization and continued success."

On July 15, 2005, L-3 Marine Systems was reassessed at CMMI(R) Systems Engineering/Software Engineering (SE/SW) Version 1.1 Maturity Level 3, having received its original CMM certification in 2002 under former owner CAE. In February 2005, CAE's Marine Controls division was purchased by

L-3 Communications and L-3 Marine Systems is part of the Canadian subsidiary named L-3 Communications MAPPS (Marine Automation and Power Plant Simulation).

Other major L-3 divisions and subsidiaries are in various phases of pursuing CMMI(R) designation, including L-3 Integrated Systems, L-3 ComCept, L-3 Communication Systems-West and L-3 Telemetry-West.

L-3 Communication Systems-East, based in Camden, NJ, designs, develops, produces and integrates communication systems and support equipment for commercial, space, ground, air and naval operations.

Headquartered in New York City, L-3 Communications is a leading provider of Intelligence, Surveillance and Reconnaissance (ISR) systems, secure communications systems, aircraft modernization, training and government services and is a merchant supplier of a broad array of high technology products. Its customers include the Department of Defense, Department of Homeland Security, selected U.S. Government intelligence agencies and aerospace prime contractors.

To learn more about L-3 Communications, please visit the company's web site at www.L-3Com.com.

SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995

Except for historical information contained herein, the matters set forth in this news release are forward-looking statements. The forward-looking statements set forth above involve a number of risks and uncertainties that could cause actual results to differ materially from any such statement, including the risks and uncertainties discussed in the company's Safe Harbor Compliance Statement for Forward-looking Statements included in the company's recent filings, including Forms 10-K and 10-Q, with the Securities and Exchange Commission. The forward-looking statements speak only as of the date made, and the company undertakes no obligation to update these forward-looking statements.