AD Amdt-39-10049
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream | Various | Airworthiness Directives; Gulfstream American (Frakes Aviation) Model G-73 (Mallard) Series Airplanes Modified in Accordance With Supplemental Type Certificate (STC) SA2323WE |
| aircraft | Aviat | Various | Airworthiness Directives; Gulfstream American (Frakes Aviation) Model G-73 (Mallard) Series Airplanes Modified in Accordance With Supplemental Type Certificate (STC) SA2323WE |
Unsafe Condition
Improper use of propeller beta during flight leading to power levers positioned below the flight idle stop, causing loss of airplane controllability or engine overspeed and consequent loss of engine power.
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 power levers below the flight idle stop and include consequences of such positioning.
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 American (Frakes Aviation) Model G-73 (Mallard) series airplanes modified under STC SA2323WE.
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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