As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT WAS FLOWN ON THE PREVIOUS EVENING. NO PROBLEMS NOTED. NEXT MORNING, ACFT WOULD NOT START. AFTER TROUBLESHOOTING ACFT, FOUND MAGNETO PROBLEMS UPON DISASSEMBLY OF MAG. BOTH DISTRIBUTOR GEARS WERE SEVERELY DAMAGED (TEETH WERE STRIPPED FROM BOTH GEARS). A NEW MAG WAS INSTALLED AND NO OTHER PROBLEMS WERE ENCOUNTERED. ACFT WAS RELEASED FOR SERVICE.