What was found
AT ENGINE OVERHAUL, THE THERMOSTATIC VALVE WAS REMOVED AND FOUND WITH AN EXTREMELY ROUGH SEAT. THE SPRING WAS ALSO FOUND COMING LOOSE. THE VALVE IS SUSPECT TO LYC SI 1423, BUT WAS NOT A FACTOR BECAUSE THE RETAINING NUT IS OK.
- Difficulty date
- March 24, 1997
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N4386B
- Make and model
- Piper PA32R301T
- Aircraft serial
- 32R85269001
- System (JASC)
- 7922 · Engine Oil Temperature Regulator
- Part
- Valve
- Part number
- 75944
- Condition
- Defective
- Location
- Thermo Bypass
- 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.