AD 2022-06-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Fan blade failures can cause fan rotor imbalance and result in fan blade fragments penetrating the inner and outer barrel of the inlet. This condition, if not addressed could result in engine in-flight shutdown, and could result in separation of the inlet, the fan cowl doors, or the thrust reverser (T/R) cowl, or result in uncontrolled engine fire.
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Required Actions
Modifying the engine inlet to withstand fan blade failure event loads. The FAA is issuing this AD to address the airplane-level implications of the unsafe condition of engine fan blade failure. The actions specified in paragraphs (h)(1) and (2) of this AD have been done.
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Compliance Time
Before further flight after the effective date of this AD
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Affected Aircraft
The Boeing Company Model 777-200 and -300 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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