As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTED MAG IAW 500-HOUR INSPECTION AT 1,057 HRS TTSN AND FOUND DISTRIBUTOR BLOCK DRIVEN GEAR BEARING BROKEN LOOSE FROM BLOCK (BROWN BLOCK). REPLACED WITH 10-682054 BLOCK. ENGINE STILL HAD ACCEPTABLE MAG DROP. APPROXIMATELY 500 HRS SINCE LAST 500-HOUR COMPLYING INSPECTION. NO 500-HOUR INSPECTION LISTED FOR MAGNETO IN LOG BOOKS.