AD Amdt-39-9875
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Williams | International, L.L.C. Model FJ44-1A Turbofan | Airworthiness Directives; Williams International, L.L.C. Model FJ44-1A Turbofan Engines |
Unsafe Condition
Separation of high pressure turbine (HPT) disk blade retention posts and liberation of turbine blades due to cracks in the HPT disk blade retention posts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct initial and repetitive eddy current inspections (ECI) for cracks in HPT disk blade retention posts. Install advanced design HPT disks as terminating action to the inspection requirements.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Williams International, L.L.C. Model 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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