10 Airworthiness Directives: 6 airplane, 3 rotorcraft, 1 engine.
AD 71-25-03 · published Dec 3, 1971, effective Dec 3, 1971
Textron Aviation Inc. Airplanes
AD 71-25-04 · published Dec 4, 1971, effective Dec 4, 1971
Sabreliner Corporation Airplanes
AD 71-25-06 · published Dec 13, 1971, effective Dec 13, 1971
The Boeing Company Airplanes
AD 71-15-02 · published Dec 21, 1971, effective Dec 21, 1971
Airbus SAS Airplanes
AD 72-01-01 · published Dec 31, 1971, effective Dec 31, 1971
Alexandria Aircraft, LLC Airplanes
AD 71-25-08 · published Dec 14, 1971, effective Dec 14, 1971
Hiller Aviation, Siam Hiller Holdings, Inc. Helicopters
AD 71-20-05 · published Dec 18, 1971, effective Dec 18, 1971
Schweizer Aircraft Corporation Helicopters
AD 71-26-03 · published Dec 30, 1971, effective Dec 30, 1971
Sikorsky Aircraft Corporation Helicopters
AD 71-25-07 · published Dec 14, 1971, effective Dec 14, 1971
Pratt & Whitney Division Engines
