SAINT-LAURENT, QUEBEC, CANADA, May 3, 2006 – L-3 Communications MAPPS, a wholly owned subsidiary of L-3 Communications, announced today that the Canadian General Standards Board (CGSB) has confirmed that L-3 MAPPS maintains a quality management system that conforms to the ISO 9001:2000 international standard for its Marine Systems and Simulation, Power Systems and Simulation and Space Systems and Simulation businesses. There are no exclusions to the scope of the registration, which includes hardware and software design and development, product realization, sales and service.

Following the acquisition of the division by L-3 Communications from CAE Inc. in February 2005, L-3 MAPPS has continued to implement its quality management system under its previous registration with the CGSB’s consent.

“Our personnel know that quality must be designed and built into everything that we do,” said Rashid Khan, president of L-3 MAPPS. “We are pleased that the CGSB has recognized our continued commitment to quality.”

L-3 MAPPS has over 20 years of experience in pioneering technological advances in the marine automation field and over 30 years of experience in delivering high-fidelity power plant simulation to leading utilities worldwide. In addition, the company has more than three decades of expertise in supplying plant computer systems for Canadian heavy water reactors. L-3 MAPPS also provides targeted controls and simulation solutions to the space sector.

To learn more about L-3 MAPPS, please visit the company’s web site at www.L-3Com.com/mapps.

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. The company is a leading merchant supplier of a broad array of high technology products, including guidance and navigation, sensors, scanners, fuzes, data links, propulsion systems, simulators, avionics, electro optics, satellite communications, electrical power equipment, encryption, signal intelligence, antennas and microwave components. L-3 also supports a variety of Homeland Security initiatives with products and services. 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. Statements that are predictive in nature, that depend upon or refer to events or conditions or that include words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “estimates” and similar expressions 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.