As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND DEFECT DURING INSPECTION OF FACTORY OVERHAULED MAGNETO. COIL TAB WAS NOT INSTALLED PARALLEL WITH THE MAGNETO PARTING SURFACE PER SECTION 7.8C OF MANUAL L-1363J. THIS CONDITION WOULD RESULT IN PREMATURE EXCESSIVE WEAR OF COIL TAB IF NOT CORRECTED.