What was found
(AUS) ENGINE OIL SYSTEM THERMAL BYPASS VALVE (VERNATHERM) RETAINING CLIP FAILED PREVENTING THE VALVE FROM CORRECT OPERATION.
- Difficulty date
- September 25, 1997
- Submitted
- March 26, 2000
- Operation
- General aviation
- Make and model
- Piper PA31350
- Engine
- Lyc LTIO540J2BD
- Propeller
- Hartzl HCE3YR2
- System (JASC)
- 7922 · Engine Oil Temperature Regulator
- Part
- Valve
- Part number
- 53E22144
- Condition
- Failed
- Location
- Thermo Bypass
- Component
- Lyc · 53E22144
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.