AD 74-26-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31 | Airworthiness Directives; Piper Models PA-31 and PA-31-300 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-300 | Airworthiness Directives; Piper Models PA-31 and PA-31-300 Airplanes |
Unsafe Condition
Fuel leaking from the heater manual shut-off and solenoid shut-off valves in the nose compartment creates explosion hazards.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct a pressure check of P/N 492107 manual heater shut-off valve and P/N 756513 solenoid fuel regulator shut-off valve within 25 hours time in service. Replace or repair leaking valves and repeat the pressure check. Remove P/N 492107 and bracket P/N 41948-00 within 125 hours. Install shroud assembly P/N 43493 with associated components over P/N 756513 within 125 hours for serial numbers 31-2 to 31-103.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Models PA-31 and PA-31-300, serial numbers 31-2 to 31-7401258 inclusive.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.