What was found
REFERENCE: P/N 70-20-00 (91752) INVERTED FUEL VALVE WAS FOUND TO BE INTERMITTENT (HANGS UP). DISASSEMBLY AND INSPECTION FOUND A 'WEAR MARK' ON HOUSING - POSSIBLY CAUSED BY THE SHUTTLE VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
REFERENCE: P/N 70-20-00 (91752) INVERTED FUEL VALVE WAS FOUND TO BE INTERMITTENT (HANGS UP). DISASSEMBLY AND INSPECTION FOUND A 'WEAR MARK' ON HOUSING - POSSIBLY CAUSED BY THE SHUTTLE VALVE.