10 Airworthiness Directives: 7 airplane, 2 engine, 1 propeller.
AD 59-18-04 · published 1959
Lockheed Aircraft Corporation Airplanes
AD 59-18-05 · published 1959
Maryland Air Industries, Inc. Airplanes
AD 59-17-01 · published 1959
Curtiss-Wright/Marquette, Inc. Engines
AD 59-18-03 · published 1959
Curtiss-Wright Corporation Propellers