Transport i infrastruktura · 25/07/1994

Airworthiness Directives; Robinson Helicopter Company Model R22 Helicopters

The Federal Aviation Administration (FAA) adopts a new airworthiness directive for Robinson Helicopter Company Model R22 helicopters to prevent abnormal in-flight vibrations, failure of the main rotor blade, and subsequent loss of control of the helicopter due to reports of chordwise cracks in the main rotor blades.