As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GOVERNOR OCCASIONALLY DROOPS IN FLIGHT. TEST RESULTS CONFIRM SNAG OF DROOP. UNIT WAS DOOPING BY 250 RPM @ T.P. 3.01 ECCENTRIC SHAFT FOUND CORRODED AND WORN BEYOND LIMITS ON LOBES. BEARINGS PN 2520503 AND 2523237 FOUND TO BE ROUGH AND DRY. ACTION TAKEN: ABOVE PARTS REPLACED WITH NEW AND UNIT WAS REPAIRED AND TESTED SERVICEABLE IAW HONEYWELL OH FORM 15-1095A. THIS INFORMATION FOR FAA SDR.