AD 2021-17-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | Turbofan | Airworthiness Directives; Pratt & Whitney Turbofan Engines |
Unsafe Condition
reports of cracks in the high-pressure compressor (HPC) rotor shaft that resulted in in-flight shutdowns and unscheduled engine removals
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
remove HPC front hub and HPC rotor shaft from service and replace each part with a part eligible for installation
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
At the next engine shop visit after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model turbofan engines
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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