AD 2000-13-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 777-200 and -300 | Airworthiness Directives; Boeing Model 777-200 and -300 Series Airplanes |
Unsafe Condition
Inflight shutdowns due to sheared backup generator shafts.
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Required Actions
Revise the Limitations Section of the Airplane Flight Manual to prohibit dispatch of certain airplanes under specific conditions. Perform repetitive inspections to ensure correct operation of the backup generators. Conduct a one-time inspection to detect damage of the engine external gearbox for certain airplanes. Accomplish specified corrective actions as outlined in Boeing Service Letters 777-SL-24-023-B and 777-SL-24-024, depending on engine type.
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Compliance Time
Within 50 flight hours after the effective date.
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Affected Aircraft
Boeing Model 777-200 and -300 series airplanes equipped with Rolls-Royce Trent 800, General Electric GE90, or Pratt & Whitney PW4000 engines.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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