7 Airworthiness Directives: 6 airplane, 1 engine.
AD 59-21-02 · published 1959
Lockheed Martin Corporation Airplanes
AD 59-21-04 · published Oct 9, 1959, effective Oct 9, 1959
The Boeing Company Airplanes
AD 59-22-02 · published 1959
Vickers-Armstrongs (Aircraft Limited) Airplanes
AD 59-22-03 · published 1959
Mooney Mite Aircraft Corporation Airplanes