ACSS CELEBRATES FIRST YEAR AS DIVISION OF L-3 COMMUNICATIONS

Contact:
Steve Henden
Manager, Communications
L-3 Communications, ACSS
602-436-5323

TAMPA, FL, May 1, 2001 - Today marks the one-year anniversary of Aviation Communications and Surveillance Systems (ACSS) as a division of L-3 Communications (NYSE:LLL). The division was created when L-3 purchased the Traffic Collision Warning System (TCAS) and Mode S Transponder product lines from Honeywell, who divested the products when Honeywell and AlliedSignal combined in 1999.

"It has been an exciting year for us," said Joe Hoffman, president of L-3 ACSS. "With demand for our products increasing and the onset of our new joint venture with Thales Avionics, we're looking forward to a very bright future."

On April 17, 2001, L-3 Communications and Thales Avionics announced their intention to form a joint venture company to operate the assets ACSS. Under the terms of the agreement, Thales Avionics will purchase a 30% interest in the joint venture to be called ACSS, an L-3 Communications & Thales Company, for approximately $72 million in cash. L-3 will own 70% of the joint venture.

The transaction is subject to approval by the Committee on Foreign Investment in the United States and by relevant authorities. The transaction must also be approved by the appropriate antitrust enforcement agencies.

ACSS provides communications and surveillance avionics systems and services and support for the global aviation marketplace. ACSS is located in Phoenix, Arizona, with marketing and support personnel stationed around the world. ACSS will be moving into a new location in Phoenix on the southwest corner of 7th Avenue and the 101 Loop (19810 N. 7th Ave. Phoenix, AZ 85027) later this year.

L-3 ACSS is a leader in aviation surveillance systems. Its product line includes a family of Traffic Alert and Collision Avoidance Systems (TCAS), Mode S Transponders and peripheral components. TCAS reduces the potential for mid-air collisions and provides an independent and complementary supplement to the air traffic control (ATC) system. Approximately 8,000 units of ACSS's TCAS product are currently installed in commercial, corporate, and military aircraft. To learn more about L-3 ACSS, please visit the division's web site at www.L-3com.com/acss.

Headquartered in New York City, L-3 Communications is a leading merchant supplier of secure communications systems and products, avionics and ocean products, training products, microwave components and telemetry, instrumentation, space and wireless products. Its customers include the Department of Defense, selected US government intelligence agencies, aerospace prime contractors and commercial telecommunications and wireless customers.

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