AD Amdt-39-18149
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | Canada Corp | Airworthiness Directives; Pratt & Whitney Canada Corp. Turboprop Engines |
Unsafe Condition
Failure of compressor turbine (CT) blades, which could result in damage to the engine and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Initial and repetitive borescope inspections (BSIs) of CT blades are required. Blades that fail inspection must be removed from service. The AD also adds an additional single crystal CT blade as a terminating action.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
All Pratt & Whitney Canada Corp. (P&WC) PT6A-114 and PT6A-114A turboprop engines, with a reduced affected population due to the addition of a new single crystal CT blade part number.
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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