As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT OWNER STATED; PROP DOES NOT WORK CORRECTLY AND WITH ENGINE OVERSPEED, PROP AND GOVERNOR INSTALLED NEW 1-15-98. BENCH CHECK GOVERNOR, FOUND ONLY 80 LBS PRESSURE, NEEDS 290. REMOVE RELIEF VALVE AND FOUND THE VALVE SEAT PN A-20572 SMASHED AND IN 3 PIECES. GOVERNOR BODY DAMAGED AS WELL DUE TO THE SPRING SEAT BEING HAMMERED BY THE RELIEF VALVE.