8 Airworthiness Directives: 2 airplane, 4 rotorcraft, 1 engine, 1 propeller.
AD 72-17-05 · published Aug 8, 1972, effective Aug 15, 1972
Piper Aircraft Inc. Airplanes
AD 72-18-01 · published Aug 29, 1972, effective Aug 29, 1972
Textron Aviation Inc. Airplanes
AD 72-16-09 · published Aug 8, 1972, effective Aug 8, 1972
MD Helicopters, Inc. Helicopters
AD 72-16-06 · published Aug 10, 1972, effective Aug 10, 1972
Sikorsky Aircraft Corporation Helicopters
AD 72-16-10 · published Aug 11, 1972, effective Aug 11, 1972
Columbia Helicopters, Inc. Helicopters
AD 72-18-04 · published Aug 31, 1972, effective Aug 31, 1972
MD Helicopters, Inc. Helicopters
AD 72-16-03 · published Aug 8, 1972, effective Aug 8, 1972
General Electric Company Engines
AD 70-16-02 · published Aug 21, 1972, effective Aug 21, 1972
Dowty Aerospace Propellers, Dowty Propellers, Dowty Rotol Limited, Dowty Rotl Limited Propellers
