Transport i lotnictwo · 26.08.1998

Terrain Awareness and Warning System

The Federal Aviation Administration (FAA) proposes to issue operating rules that would prohibit operation of turbine-powered U.S.- registered airplanes type certificated to have six or more passenger seats, exclusive of pilot and copilot seating, unless that airplane is equipped with an FAA-approved terrain awareness and warning system (also referred to as an enhanced ground proximity warning system). This proposal would affect aircraft operated under parts 91, 121 and 135. Because operators under part 125 and operators of U.S.-registered airplanes under part 129 must comply with part 91, they would also have to meet this requirement. This change is needed because there have been several accident investigations and studies that have shown a need to expand the safety benefits of ground proximity warning systems to certain additional operations. In addition, these investigations and studies have shown that there is a need to increase the warning times and situational awareness of flight crews to decrease the risk of controlled flight into terrain accidents.