AD 2012-19-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company | Airworthiness Directives; General Electric Company Turbofan Engines |
Unsafe Condition
Failure of the fan mid shaft (FMS) resulting in one or more engine failure(s) and possible loss of the airplane.
Required Actions
Perform an initial ultrasonic inspection (UI) for cracks in the FMS before further flight, and thereafter perform repetitive UIs for cracks in the FMS within every 90 days since-last-inspection.
Compliance Time
Before further flight
Affected Aircraft
General Electric Company (GE) GEnx-1B54, GEnx-1B58, GEnx-1B64, GEnx-1B67, GEnx-1B70, GEnx-1B54/P1, GEnx-1B58/P1, GEnx-1B64/P1, GEnx-1B67/P1, GEnx-1B70/P1, GEnx-1B70/72/P1, GEnx-1B70/75/P1, GEnx-1B74/75/P1, and GEnx-1B75/P1 turbofan engines with fan mid shaft (FMS) part number (P/N) 2331M20G02 or P/N 2332M81G01, installed; and GE GEnx-2B67 and GEnx-2B67B turbofan engines with FMS P/N 2332M33G01, installed.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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