AD 91-06-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney Canada Corp. | PW118 | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW118A | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW120 | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW120A | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW121 | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW123 | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW124B | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW125B | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
| engine | Pratt & Whitney Canada Corp. | PW126A | PRATT & WHITNEY CANADA Models PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B and PW126A Engines |
Unsafe Condition
Fuel leakage from the fuel filter cover assembly could result in a fire hazard in the engine nacelle.
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Required Actions
Incorporate a new fuel pump filter cover assembly or fuel pump per specified PWC Service Bulletins. Ferrying is allowed under FAR 21.197/199. Alternate compliance may be approved via FAA submission.
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Compliance Time
within the next 1,200 hours time in service after the effective date of this AD
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Affected Aircraft
Pratt & Whitney Canada PW115, PW118, PW118A, PW120, PW120A, PW121, PW123, PW124, PW124A, PW124B, PW125B, PW126A engines installed on Aerospatiale ATR-42/72, British Aerospace ATP, DeHavilland DHC-8, Embraer EMB-120, Fokker F-50, and Canadair CL-215T aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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