As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 GOVERNOR IS SLOW,NR HIGH WITH REDUCED POWER. TEST RESULTS INDICATE GOVERNOR WAS DROOPING OFF SLIGHTLY (100 RPM) SEVERAL INTERNAL BEARINGS PN 2520503 & 2523237 FOUND DRY AND ROUGH. THROTTLE BUSHING WORN ALLOWING SHAFT TO HAVE EXCESSIVE PLAY. ECCENTRIC SHAFT CORRODED AND WORN BEYOND LIMITS. ACTION TAKEN: REPAIRED AND TESTED SERVICEABLE IAW HONEYWELL OHM 15--1095A. ABOVE PARTS REPLACED. CEB A-1353 R1 FOUND N/AB, UNIT S/N, CEB A-1361R1 FOUND C/W.