Business · 26/11/1996

Airworthiness Directives; Air Tractor, Inc. Models AT-250, AT-300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-501, and AT-502 Airplanes

The Federal Aviation Administration (FAA) has issued an airworthiness directive (AD) requiring Air Tractor, Inc. to replace a faulty parking brake valve in certain models of its aircraft, the AT-250, AT-300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-501, and AT-502, to prevent the aircraft from overturning during landing due to the valve slipping to the 'PARK' position during flight.