6 Airworthiness Directives: 5 airplane, 1 engine.
AD 68-16-01 · published Aug 5, 1968, effective Aug 5, 1968
Textron Aviation Inc. Airplanes
AD 68-15-03 · published Aug 15, 1968, effective Aug 15, 1968
Vickers-Armstrongs (Aircraft Limited) Airplanes
AD 68-17-03 · published Aug 19, 1968, effective Aug 19, 1968
Pilatus Aircraft Limited Airplanes
AD 68-17-06 · published Aug 27, 1968, effective Aug 27, 1968
Textron Aviation Inc. Airplanes
AD 63-23-02 · published Aug 6, 1968, effective Aug 6, 1968
Lycoming Engines Engines