AD 2019-21-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | Turbofan | Airworthiness Directives; Pratt & Whitney Turbofan Engines |
Unsafe Condition
Cracks in the LPC R1 and an additional in-flight failure of the LPC R1, which can result in uncontained release of the LPC R1, damage to the engine, damage to the airplane, and loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform initial and repetitive borescope inspections of the LPC R1 for cracks or damage, and depending on the results of the inspections, replace the LPC.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight cycles for certain engines, and within 15 flight cycles for zero time spare engines.
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Affected Aircraft
Pratt & Whitney PW1519G, PW1521G, PW1521GA, PW1524G, PW1525G, PW1521G-3, PW1524G-3, 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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