3 Airworthiness Directives: 2 airplane, 1 engine.
AD 52-19-01 · published 1952
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 52-20-02 · published 1952
Curtiss-Wright/Marquette, Inc. Engines