As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE GOVERNOR (OFF) WARNING LIGHT WAS STAYING ON, REGARDLESS OF THE STATUS OF THE GOVERNOR. BY ALL CHECKS THE GOVERNOR WAS WORKING WHEN TURNED ON, AND TURNING OFF WHEN THE SWITCH WAS TURNED OFF, HOWEVER THE (GOVERNOR OFF) LIGHT STAYED ON AT ALL TIMES. THE CONTROL RELAY FOR THE LIGHT WAS FOUND TO BE STICKING, KEEPING THE LIGHT ON. RELAY WAS REPLACED, AND NO FURTHER DEFECTS WERE FOUND.