AD 2020-13-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | Canada Corp | Airworthiness Directives; Pratt & Whitney Canada Corp. Turboprop Engines |
Unsafe Condition
certain HP centrifugal impellers installed on P&WC PW150A model turboprop engines may exhibit a material microstructure anomaly that has a potential to adversely affect the low cycle fatigue characteristics of the part.
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Required Actions
Remove HP centrifugal impeller, P/N 3049127-01, with any serial number (S/N) listed in Table 2 of P&WC Service Bulletin (SB) No. PW150-72-35331, Revision No. 1, dated May 3, 2016, prior to the parts reaching the determined thresholds.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Pratt & Whitney Canada Corp. (P&WC) PW150A model turboprop engines with a high-pressure (HP) centrifugal impeller, part number (P/N) 3049127-01, installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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