AD 2004-04-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company CF34-8E Series | Airworthiness Directives; General Electric Company CF34-8E Series Turbofan Engines |
Unsafe Condition
Master variable geometry (VG) actuator electrical signal faults, including dual-channel faults, causing the FADEC to command engine power to idle and potentially resulting in a loss of thrust above idle. This could lead to a multi-engine loss of thrust if faults occur simultaneously on more than one engine.
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Required Actions
Initial and repetitive reviews of the airplane computer systems for master VG actuator fault messages. Replacement of actuators reported faulty by the FADEC.
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Compliance Time
Before further flight
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Affected Aircraft
General Electric Company CF34-8E series turbofan engines with certain serial number (SN) master variable geometry (VG) actuators installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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