AD Amdt-39-10621
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream | Various | Airworthiness Directives; Gulfstream Aerospace Corporation Model G-159 (G-I) Airplanes |
Unsafe Condition
Improper use of the ground propeller beta range during flight can cause loss of airplane controllability or engine overspeed with consequent loss of engine power due to power levers positioned below the flight idle stop.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revise the Airplane Flight Manual (AFM) to prohibit positioning the power levers below the flight idle stop.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Gulfstream Aerospace Corporation Model G-159 (G-I) airplanes equipped with turboprop engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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