AD 75-11-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream Aerospace Corporation | G-1159 | Airworthiness Directives; GRUMMAN AMERICAN AVIATION CORPORATION Model G-1159 Airplanes |
Unsafe Condition
unnecessarily high longitudinal stick forces due to an inadvertent excessive increase of nose down electric trim
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Reduce the elevator trim nose down authority from 8.5 + 0.5 degrees to 4.5 + 0.5 degrees in accordance with Grumman Aircraft Service Change 182, Amendment 1, or in an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, Southern Region.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 1200 hours' time in service after May 22, 1975, or before October 31, 1976, whichever occurs first, unless already accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Grumman G-1159 airplanes, serial numbers 1 thru 156 and serial number 775, certificated in all categories
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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