AD Amdt-39-11088
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Williams | International, L.L.C. FJ44-1A Turbofan | Airworthiness Directives; Williams International, L.L.C. FJ44-1A Turbofan Engines |
Unsafe Condition
Failure of the high pressure turbine (HPT) disk rim, which could result in an uncontained engine failure and damage to the aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the HPT disk from service prior to accumulating 1,900 cycles since new (CSN) and replace with a serviceable disk. Alternatively, modify the HPT nozzle to increase the HPT disk cyclic life limit.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before accumulating 1,900 cycles since new (CSN).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Williams International, L.L.C. FJ44-1A turbofan engines.
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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