HomeAD libraryBy monthJuly 1951ADs published in July 19514 Airworthiness Directives: 3 airplane, 1 engine.June 1951August 1951AirplaneAD 51-14-01 · published 1951Textron Aviation Inc. AirplanesTextron Aviation Inc. AirplanesAD 51-16-01 · published 1951Bellanca Aircraft Corporation AirplanesBellanca Aircraft Corporation AirplanesAD 51-16-02 · published 1951Alexandria Aircraft, LLC AirplanesAlexandria Aircraft, LLC AirplanesEngineAD 51-15-02 · published 1951Wytwornia Sprzetu Komunikacyjnego EnginesWytwornia Sprzetu Komunikacyjnego Engines