As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SCREW SECURING ROTOR ASSY TO DISTRIBUTOR DRIVE GEAR FELL OUT BECOMING ENTANGLED IN GEAR TEETH ON DRIVE GEAR (FIBER), ALL WERE BROKEN OFF. ROTOR FELL DOWN JAMMING THE COIL AND CASE. THIS IS THE SECOND TIME THIS HAS OCCURRED. PREVIOUSLY, LOOSE SCREWS WERE FOUND DURING INSPECTION.