As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS SHOPPED FOR STALL ON LANDING. INSPECTION OF MAGNETO`S SHOWED A COPPER COLORED DUST ON THE LT MAGNETO VENT. BOTH MAGS WERE REPLACED, MAG INTERNAL INSPECTION SHOWED A WORN BUSHING CREATING A METALLIC DUST. CAUSING MAGNETO TO MALFUNCTION. TACH TIME ON LEFT MAGNETO 296 HRS. TACH TIME ON RT MAGNETO 269HRS.