78-22-06 GULFSTREAM AMERICAN CORPORATION (GAC): Amendment 39- 3331. Applies to GAC Model GA-7 serial numbers GA7-0002 through GA7-0036, GA7-0038 through GA7-0043, GA7-0045, GA7-0046, and GA7-0049, airplanes certificated in all categories.
Compliance is required as indicated, unless already accomplished.
To prevent failure of the elevator trim control master chain and loss of elevator trim control, accomplish the following within 5 flight hours of the effective date of this AD:
Inspect and modify the elevator trim control system in accordance with GAC Service Bulletin ME-6 dated October 18, 1978, or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA, Southern Region, or in an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, FAA, Southern Region. The inspection and/or alteration required by this AD constitute maintenance and may be performed by persons authorized to perform such maintenance under FAR 43.This amendment becomes effective November 2, 1978.