Accession Number : ADA290608

Title :   AVIATION SAFETY: Users Differ in Views of Collision Avoidance System and Cite Problems.

Corporate Author : GENERAL ACCOUNTING OFFICE WASHINGTON DC RESOURCES COMMUNITY AND ECONOMIC DEVE LOPMENT DIV

PDF Url : ADA290608

Report Date : 16 MAR 1992

Pagination or Media Count : 20

Abstract : TCAS is now installed in a substantial portion of the U.S. commercial fleet, and both the Airline Pilots Association and FAA believe that the system adds a margin of safety to alr travel. However, problems that have emerged prevent the system from reaching its full potential. The aviation community is nearly unanimous in recognizing that TCAS needs to be Improved because it issues too many unnecessary alerts, causes excessive altitude deviations (over 1,000 feet), and causes pilots to miss landing approaches. Pilots and alr traffic controllers stated that these problems reduce users' confidence in TCAS and the margin of safety that the system provides.

Descriptors :   *AIR TRAFFIC CONTROL SYSTEMS, *COLLISION AVOIDANCE, COMMERCE, COMMUNITIES, PILOTS, AERONAUTICS, FLEETS(SHIPS), AVIATION SAFETY, ALTITUDE, AIR TRAFFIC CONTROLLERS, CONFIDENCE LEVEL, MARGIN OF SAFETY, WARNING SYSTEMS.

Subject Categories : Flight Control and Instrumentation
      Safety Engineering
      Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE