ATR ADDS T²CAS TO ATR42-500 AND ATR72-500 CATALOGS

-- Industry’s Only Combined TAWS A/TCAS II Continues to Win Over Customers --

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

FARNBOROUGH, July 31, 2006 – ACSS, an L-3 Communications & Thales Company, announced today that ATR has selected its T²CAS as a standard option for all new ATR42-500 and ATR72-500 aircraft. ACSS’s combined traffic alert and collision avoidance system (TCAS) and terrain awareness warning system (TAWS) is available for operators to select now through the ATR aircraft catalog, with certification expected late this year.

“We are very proud of our growing relationship with ATR,” said Kris Ganase, president of ACSS. “We began working with ATR back in 2003 when we came together to support T²CAS certifications for ATR42s and ATR72s being operated by FedEx and American Eagle. Now we look forward to installing our advanced safety avionics solutions on new ATR aircraft.”

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. The system provides a powerful combination of functionalities that result in space, wiring, weight and power savings. T²CAS is a performance-based system that can be applied to any business, regional, air transport or military aircraft to avoid Controlled Flight Into Terrain (CFIT), which gives operators more time to clear terrain and traffic with an increased margin to maneuver and reduce nuisance alerts.

Among the patented features is a Terrain Advisory Line (TAL) that indicates where the terrain is should the aircraft continue on its current flight path. The length and duration of the alert line mirrors the cautionary terrain segment within 30 degrees either side of the aircraft flight path, out to four minutes in front of the aircraft. When the TAWS portion of the T²CAS computer detects that the aircraft does not have sufficient climb capability to clear the terrain by a standard vertical recovery maneuver, it generates a unique identifiable “Avoid Terrain” aural-visual alert.

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.