As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE COMPLYING WITH SB 5B3-08 AND SB-2-80C, FOUND THE DISTRIBUTOR BLOCK AND GEAR ASSY FAULTY. THE BEARING IN THE DISTRIBUTOR BLOCK WAS SEIZED TO THE GEAR. ALLOWING THE DISTRIBUTOR BLOCK BEARING TO ROTATE IN THE HOUSING. PN 4373, SN 13060958.