4 Airworthiness Directives: 2 airplane, 1 propeller, 1 appliance.
AD 55-09-02 · published 1955
Airlift International, Inc., Curtiss-Wright Corporation, Flying Tiger Line, Inc., L. B. Smith Aircraft Corporation, Skyways International Trading and Transport Co., Tempo Design Corporation Airplanes
AD 55-09-04 · published 1955
Hamilton Standard Division Propellers