As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROP GOVERNOR WAS SENT IN TO COMPLY WITH SB 83344-61-002 FOR REPLACEMENT OF BEARING. UNIT WAS O/H IN MARCH 31, 2015 AND THE CUSTOMER REPORTED ZERO HOURS SINCE O/H. THE PLUNGER, PN 3534-046 AND THE BEARING/RACE, PN 1415-336 HAD A BLACK/BLUE DISCOLORATION THAT APPEARED TO BE FROM HEAT. THE BEARING PN 1415-336 WAS ABNORMALLY FORMED AND THE BALLS WITHIN THE RETAINER NOT FULLY INTACT.