69-08-10 AERO COMMANDER DIVISION, NORTH AMERICAN ROCKWELL CORPORATION: Amdt. 39-754. Applies to all Aero Commander Model 1121 series airplanes.
Compliance required within the next 100 hours' time in service after the effective date of this A.D., unless already accomplished.
To assure required trim capability at the approved aft center of gravity limit, accomplish the following:
Modify the horizontal stabilizer trim system in accordance with Part II of Aero Commander Service Bulletin No. J-4B dated February 28, 1969, or an equivalent modification approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southwest Region, Fort Worth, Texas.
This amendment becomes effective May 24, 1969.