AD 2012-25-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream | Aerospace Corporation | Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes |
Unsafe Condition
The flap/stabilizer electronic control unit (FSECU) does not detect failures of the brake feature within the horizontal stabilizer electric motor unit (HSEMU), or failures of drive solenoids for hydraulic valves within the flap hydraulic control module (FHCM) during the system power-on self test (SPOST).
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Required Actions
Perform a modified system power-on self test (SPOST) of the FSECU. Revise the airplane flight manual to incorporate these test procedures into the daily preflight check.
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Compliance Time
Within 3 days
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Affected Aircraft
Gulfstream Aerospace Corporation Model GIV-X airplanes, as specified in the referenced service information.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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