71-02-05 AEROSTAR: Amdt. 39-1147. Applies to Model 600 and 601 airplanes, Serial Numbers 60-0001 through 60-0056 and 61-0001 through 61-0070.
Compliance required within the next 10 hours time in service after the effective date of this AD, unless already accomplished.
To prevent possible separation of the main cabin door from the airframe, inspect the cabin door lock pins, replace any missing washers, adjust pins and torque lock nut in accordance with the Instructions in Aerostar Service Letter #600-19 dated 22 September 1970 or by an equivalent method approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, FAA, Fort Worth, Texas.
This amendment becomes effective January 23, 1971.