AD 2010-17-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Pratt & Whitney Canada Corp. (P&WC) PW615F-A Turbofan Engines |
| engine | Pratt & Whitney | Canada Corp | Airworthiness Directives; Pratt & Whitney Canada Corp. (P&WC) PW615F-A Turbofan Engines |
Unsafe Condition
The Fuel Filter Bypass Valve poppet in the Fuel Oil Heat Exchanger (FOHE) on PW615F-A engines has worn through the housing seat, allowing unfiltered fuel and debris to contaminate the Fuel Metering Unit (FMU), resulting in fuel flow drop and subsequent power reduction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the FOHE fuel filter bypass poppet valve with a larger fuel filter bypass poppet valve within 25 hours of the effective date of the AD. Use paragraph 3.A. of the Accomplishment Instructions of Pratt & Whitney Canada Corp. Alert Service Bulletin (ASB) No. PW600-72-A63071, Revision 1, dated January 7, 2010, to do the replacement.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours of the effective date of the AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney Canada Corp. PW615F-A turbofan engines with fuel/oil heat exchanger (FOHE) part number (P/N) 35C3778-01 or P/N 35C3778-02 installed. These engines are installed on, but not limited to, Cessna 510 (Mustang) airplanes.
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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