10 Airworthiness Directives: 4 airplane, 5 rotorcraft, 1 appliance.
AD 81-09-04 · published May 4, 1981, effective May 4, 1981
Short Brothers PLC Airplanes
AD 81-10-01 · published May 4, 1981, effective Apr 30, 1981
Piper Aircraft Inc. Airplanes
AD 81-11-01 · published May 13, 1981, effective May 13, 1981
Nomad TC Pty Ltd Airplanes
AD 79-25-02 R1 · published May 22, 1981, effective May 22, 1981
Lockheed Martin Corporation Airplanes
AD 80-21-52 · published May 6, 1981, effective May 6, 1981
Airbus Helicopters Helicopters
AD 81-09-07 · published May 7, 1981, effective May 7, 1981
Sikorsky Aircraft Corporation Helicopters
AD 78-24-06 R1 · published May 11, 1981, effective May 11, 1981
Bell Helicopter Textron Canada Limited Helicopters
AD 81-10-02 · published May 11, 1981, effective May 11, 1981
FH1100 Manufacturing Corporation Helicopters
AD 81-10-07 · published May 14, 1981, effective May 14, 1981
Bell Helicopter Textron, Inc. Helicopters
AD 81-09-09 · published May 8, 1981, effective May 8, 1981
Stewart-Warner Corporation Appliances
