5 Airworthiness Directives: 2 airplane, 2 rotorcraft, 1 propeller.
AD 61-04-02 · published Feb 10, 1961, effective Mar 14, 1961
The Boeing Company Airplanes
AD 61-03-04 · published Feb 13, 1961, effective Feb 13, 1961
Lockheed Martin Aeronautics Company Airplanes
AD 61-04-01 · published Feb 22, 1961, effective Feb 22, 1961
Brantly International, Inc. Helicopters
AD 61-03-03 · published Feb 13, 1961, effective Feb 13, 1961
Hartzell Propeller, Inc. Propellers
