SDR 98ZZZX150

Service difficulty report · Valve · Mooney M20E

Difficulty date: December 1, 1997
Submitted: March 26, 2000
Operation: General aviation
Make and model: Mooney M20E
System (JASC): 7922 · Engine Oil Temperature Regulator
Part: Valve
Part number: 53E22144
Condition: Failed
Location: Thermo Bypass
Stage of operation: IN
Nature of condition: W
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RECEIVED PN 53E22144 AND INSTALLED, OIL TEMPERATURE PROBLEM. REMOVED AND HAD TRUED PER SB 1316. FURTHER INSPECTION SHOWED NUT IMPROPERLY CRIMPED ON NEW VALVE, SEAT COULD NOT SIT SQUARELY ON NUT, NO THREADS PROTRUDED OUT THE TOP OF THE CRIMPED NUT. REPLACED WITH NEW VALVE THAT HAD THREADS OUT THE TOP OF THE NUT.

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