4 Airworthiness Directives: 3 airplane, 1 rotorcraft.
AD 63-03-01 · published Feb 5, 1963, effective Mar 7, 1963
The Boeing Company Airplanes
AD 63-03-02 · published Feb 6, 1963, effective Feb 6, 1963
Bombardier Inc. Airplanes
AD 63-02-01 · published Feb 12, 1963, effective Feb 12, 1963
The Boeing Company Airplanes
AD 63-04-02 · published Feb 12, 1963, effective Feb 12, 1963
Hiller Aviation Helicopters