ACSS CONTINUES STRONG SALES OF TCAS & TAWS PRODUCTS

-- Airlines Select T²CAS™, TCAS 2000 and Mode S Transponder Products --

Contact:
Steve Henden
Manager, Communications
ACSS, an L-3 Communications & Thales Company
623-445-7021
steve.henden@L-3com.com

FARNBOROUGH, July 17, 2006 – ACSS, an L-3 Communications & Thales Company, continues to show strong sales of its core products into the emerging Chinese market with recent sales of the TCAS 2000 and the XS-950 Air Transport Data Link Transponder (ATDL) to China East Star and China Southern. ACSS also recently won business at Air One, Jet Airways and Juneyao with the T²CAS, a combined terrain and traffic collision avoidance system. T²CAS has sales of more than 1,600 units since earning certification in 2003 and is the only combined Class A TAWS and TCAS II on the market.

“Demand for our TCAS, TAWS and Transponder products continue to be strong,” said ACSS President Kris Ganase. “China is one region of the world that continues to look to ACSS to provide superior safety avionics systems.”

Earlier this year, ACSS announced the selection of T²CAS by China Sichuan. The ACSS TAWS+, a stand-alone terrain awareness warning system, is the standard TAWS solution for the new ARJ21, a 78- to 105-seat regional jet being manufactured by AVIC I Commercial Aircraft Company in the People’s Republic of China. For this program, TAWS+ will be integrated into the Rockwell Collins Pro Line 21 avionics suite.

Aviation Communication & Surveillance Systems (ACSS), an L-3 Communications & Thales Company, is a leader in safety avionics systems that increase safety, situational awareness and efficiency for aircraft operators. Based in Phoenix, its products include the TCAS 3000 and TCAS 2000 traffic alert and collision avoidance systems; MASS™, an enhanced TCAS for military operations; a family of Mode S transponders; the T²CAS®, a combined traffic and terrain collision avoidance system; TAWS+, a stand-alone terrain awareness warning system; and the Dlink+ communications management unit. The ACSS portfolio also includes a suite of automatic dependent surveillance-broadcast solutions for pilots operating in the airport vicinity called SafeRoute™. More than 45,000 units of ACSS product are operating in commercial, corporate and military aircraft. To learn more about ACSS, please visit the company's web site at www.acssonboard.com.

About ATR
Toulouse, Southern France-based regional aircraft manufacturer ATR is the world leader in the 50 to 70-seat turboprop market. In 2005, ATR posted a turnover of $542 million, an increase of 15% compared to 2004. ATR is an equal partnership between Alenia Aeronautica (Finmeccanica group) and EADS. ATR is certified ANSI/ISO/ASQ Q 9001:2000 and EN/AS/JISQ 9100, the worldwide quality standard in the field of aeronautics. www.atraircraft.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.