HomeAD libraryBy monthFebruary 1949ADs published in February 19493 Airworthiness Directives.January 1949March 1949AirplaneAD 49-04-01 · published 1949Textron Aviation Inc. AirplanesTextron Aviation Inc. AirplanesAD 49-05-01 · published 1949Lockheed Aircraft Corporation AirplanesLockheed Aircraft Corporation AirplanesAD 49-05-03 · published 1949Sierra Hotel Aero, Inc. AirplanesSierra Hotel Aero, Inc. Airplanes
