3 Airworthiness Directives: 2 airplane, 1 rotorcraft.
AD 74-02-02 · published Jan 18, 1974, effective Jan 18, 1974
Aerotek II, Inc. Airplanes
AD 73-26-01 · published Jan 28, 1974, effective Jan 28, 1974
Lavia Argentina S.A. (Laviasa) Airplanes
AD 73-25-03 · published Jan 10, 1974, effective Jan 10, 1974
Hiller Aviation Helicopters