As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE INSPECTION OF THE AIRCRAFT, MAGNETO TO ENGINE TIME CHECK REVEALED 15 DEGREE DISCREPANCY. FURTHER INSPECTION FOUND MAGNETO CAMSHAFT LOOSE IN THE HOUSING. SUBMITTER STATES EXTREME WEAR OF CAM BEARING DUE TO INADEQUATE LUBRICATION OF BEARING DURING OVERHAUL BUILD-UP AT ELECTROSYSTEMS. COMPONENT P/N 1200S103492204