AD 2009-14-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | General | Electric Company (GE) CF6-80C2B5F Turbofan | Airworthiness Directives; General Electric Company (GE) CF6-80C2B5F Turbofan Engines |
Unsafe Condition
HPCR stages 11-14 spool/shaft fatigue cracks caused by exceeding the life limit, which could result in a possible uncontained failure of the HPCR spool/shaft and damage to the airplane.
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Required Actions
Remove any CF6-80C2B5F turbofan engine that has an HPCR stages 11-14 spool/shaft, P/N 1703M74G03, before the spool/shaft meets or exceeds the new, reduced life cycle limit of 19,500 cycles. After the effective date, do not install any CF6-80C2B5F turbofan engine with an HPCR stages 11-14 spool/shaft, P/N 1703M74G03, that meets or exceeds 19,500 cycles.
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Compliance Time
Before the spool/shaft meets or exceeds 19,500 cycles.
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Affected Aircraft
General Electric Company (GE) CF6-80C2B5F turbofan engines with a high-pressure compressor rotor (HPCR) stages 11-14 spool/shaft, part number (P/N) 1703M74G03, installed. These engines are installed on, but not limited to, Boeing 747 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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