6 Airworthiness Directives: 4 airplane, 2 propeller.
AD 58-06-01 · published 1958
Kelowna Flightcraft R & D Ltd. Airplanes
AD 58-07-03 · published 1958
Vickers-Armstrongs (Aircraft Limited) Airplanes
AD 58-07-06 · published 1958
Vickers-Armstrongs (Aircraft Limited) Airplanes