T²CAS™ AVAILABLE THROUGH RAYTHEON ON B1900 MODELS
Initially On B1900B & B1900C; Then B1900D

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

PHOENIX, January 5, 2004 - ACSS, an L-3 Communications & Thales Company, announced today that Raytheon Airline Aviation Services (RAAS) and Raytheon Aircraft Services (RAS) have teamed-up to offer T²CAS™ - ACSS's combined traffic and terrain avoidance system - as a retrofit solution for the B1900B and B1900C models. T²CAS is an integrated TCAS II and Class A TAWS. It allows B1900 operators to meet both TCAS and TAWS mandates. First certification of a B1900C model is expected in the first quarter 2004, followed by the B1900D model.

" This is another important step in the evolution of T²CAS," said Joe Hoffman, ACSS president. "B1900 operators will not only meet two approaching mandates, but will achieve a new level of situational awareness with our combined TCAS/TAWS solution."

T 2 CAS is a unique safety avionics product that combines a performance-based terrain awareness warning system (TAWS) with the industry's leading traffic alert and collision avoidance system, the TCAS 2000.T²CAS received Federal Aviation Administration (FAA) certification in February 2003. The system has been designed as a "plug-and-play" replacement for the TCAS 2000, ACSS's second generation TCAS II currently flying on more than 7,000 corporate, regional, air transport and military aircraft.

Along with optional Windshear and GPS, T²CAS 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. The Ground Collision Avoidance Module (GCAM) within T²CAS enables Modes 1-5 and provides unique predictive warnings and cockpit displays.

Among the patented features is a Terrain Advisory Line 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 GCAM 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.

The growing list of T²CAS customers includes Aero California, Aeromexico, Air Atlanta Icelandic, AVITEX, EAT, Gulf Air, Federal Express, Mesaba, Northwest Airlines, ONUR Air, QATAR, Royal Brunei, SUKHOI, Swift Aviation, TG Aviation, the U.S. Air Force, the U.S. Customs Service, and Virgin Express.