AD 97-14-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream Aerospace Corporation | G-159 | Airworthiness Directives; Gulfstream Aerospace Corporation Model G-159 (G-I) Airplanes |
Unsafe Condition
Failure of the elevator trim tab mounting lugs due to cracking could result in severe vibration during flight and reduction or loss of elevator trim tab capability, leading to reduced controllability of the airplane.
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Required Actions
Within 10 hours time-in-service after November 24, 1972, inspect elevator trim tab actuators for cracks and shim out-of-plane conditions per Gulfstream Customer Bulletin No. 208A and amendments. Repeat inspections at intervals not exceeding 200 hours time-in-service unless an actuator with part number 159SCC100-11 is installed. Within 1,000 hours time-in-service after August 7, 1997, replace actuators with part number 159SCC100-11 per Gulfstream Service Change No. 191.
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Compliance Time
Within 10 hours time-in-service after November 24, 1972 and within 1,000 hours time-in-service after August 7, 1997
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Affected Aircraft
Gulfstream Aerospace Corporation Model G-159 (G-I) airplanes where elevator trim tab actuators with part number 159SCC100-11 are not installed.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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