What was found
PILOT REPORTED A DEAD LEFT MAGNETO ON ENGINE GROUND RUN. MAINTENANCE REMOVED MAGNETO AND FOUND NEEDLE BEARINGS FROM THE LEFT HAND SIDE OF MAGNETO DRIVE GEAR IN MAGNETO HOUSING. MAINTENANCE REPLACED MAGNETO AND GROUND RUN WAS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PILOT REPORTED A DEAD LEFT MAGNETO ON ENGINE GROUND RUN. MAINTENANCE REMOVED MAGNETO AND FOUND NEEDLE BEARINGS FROM THE LEFT HAND SIDE OF MAGNETO DRIVE GEAR IN MAGNETO HOUSING. MAINTENANCE REPLACED MAGNETO AND GROUND RUN WAS NORMAL.