AD 2003-12-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company CF6-80A1/A3 and CF6-80C2A PMC Series | Airworthiness Directives; General Electric Company CF6-80A1/A3 and CF6-80C2A PMC Series Turbofan Engines |
Unsafe Condition
Undetectable failure mode of the directional pilot valve (DPV) pressure switch on certain GE CF6-80C2A and CF6-80A1/A3 engine models, which could lead to inadvertent fan reverser deployment in-flight, potentially resulting in loss of control of the airplane.
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Required Actions
Perform either a DPV pressure switch moisture purge procedure and an operational check of the fan reverser, or replace the DPV assembly with a serviceable assembly and perform an operational check of the fan reverser. Alternatively, deactivate the thrust reverser, with the DPV replaced within 10 days. Repeat these actions on a repetitive basis as specified.
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Compliance Time
Within 1,400 flight hours time-since-new (TSN) or 600 flight hours time-in-service (TIS) after the effective date of the AD, whichever occurs later.
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Affected Aircraft
General Electric Company CF6-80A1/A3 and CF6-80C2A PMC series turbofan engines installed on, but not limited to, Airbus Industrie A300-600 and A310 series airplanes.
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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