SAFEROUTE™ SET TO CERTIFY
ACSS Submits TSO Paperwork for First ADS-B Product for Commercial Aviation
Provides Cockpit Solution for Runway Incursions & Approach Sequencing

Contact:
Steve Henden
Manager, Communications
ACSS, an L-3 Communications & Thales Company
623-445-7021

PARIS, June 18, 2007 – Since SafeRoute™ development was announced at the 2005 Paris Air Show, ACSS, an L-3 Communications & Thales Company, has met all of its development milestones on schedule, leading to the submittal of technical standard order (TSO) documentation to the Federal Aviation Administration (FAA) last Friday, June 15.

With TSO paperwork submitted, ACSS now looks forward to receiving certification in the coming weeks for the first automatic dependent surveillance-broadcast (ADS-B) for commercial aviation. UPS will begin fleetwide installation of SafeRoute beginning this summer.

“This is truly an historic event,” said ACSS President Kris Ganase, who at the Paris Air Show in 2005 announced the SafeRoute development program and UPS Airlines as the launch customer. “There are not many avionics suppliers who say they will certify in a certain time frame and actually do it. It’s a credit to our great team at ACSS, a motivated launch customer in UPS, and a group of innovative partners who helped us bring this product to market on time.”

ACSS acknowledged the following partner company for their contributions to the program:
• Astronautics – Joint developer with ACSS of the Cockpit Display of Traffic Information (CDTI) software
• Boeing – Supplier of the Electronic Flight Bag (used to display SafeRoute in the cockpit for UPS)
• Gables Engineering – Developer of the ADS-B Guidance Display (AGD) which interacts with ACSS Surveillance Processor to display SafeRoute information
• Jeppesen – Provider of navigation and airport map database

“The FAA also deserves thanks for working closely with us to bring the anticipated timeline for developing and implementing this technology forward,” said Ganase.

SafeRoute is a unique set of safety and efficiency software solutions based on automatic dependent surveillance-broadcast (ADS-B) technology. The system features two unique functional areas: Surface Area Movement Management (SAMM) and Merging & Spacing (M&S).

The SAMM application provides flight crews with an airport surface map and tracks the movements of aircraft and other ground and airborne traffic in the terminal area, and alerts crews of potential conflicts. With more and more attention being paid to the issue of runway incursion, business jet OEMs and operators are looking for solutions to what the FAA has called its “number 1 safety concern.” The SAMM application within SafeRoute delivers enhanced situational awareness by using aircraft onboard surveillance technology coupled with squittered ADS-B information to display traffic on an airport map to reduce the possibility of runway incursions.

The SafeRoute Merging & Spacing function makes use of on-board aircraft surveillance capability to provide flight deck spacing commands that allow aircraft to follow one another at the safest, most efficient interval possible from cruise altitude to the runway. M&S will ensure more consistent aircraft spacing while increasing capacity within the terminal airspace. M&S will also enable Continuous Descent Arrivals (CDA), which will further increase efficiency.

“Successful trials with CDAs flown in 2004 show the potential to achieve a 30 percent reduction in noise and a 34 percent reduction in emissions,” said Capt. Karen Lee, UPS Director of Flight Operations. “We also expect significant fuel savings from keeping our planes at higher altitudes longer and being able to get our planes on the ground faster.”

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.

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.