As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) MAGNETO SNAGGED AS U/S ON AIRCRAFT BUT TESTED OK ON THE TEST BENCH. THE MAGNETO WAS DISASSEMBLED FOR INSPECTION AND WHEN THE CAPACITOR WAS TESTED, IT SHOWED EXCESSIVE CURRENT LEAKAGE TO GROUND. THE SUBMITTER STATES THAT THE SUBJECT CAPACITOR TESTED OK AT THE PREVIOUS OVERHAUL.