As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) RIGHT ALTERNATOR FAILED. INVESTIGATION FOUND THE ROTOR HALF SECURING SCREWS MISSING OR WITH STRIPPED THREADS. THE UNBALANCED ROTOR THEN WORE THE ROTOR SHAFT UNTIL THE DRIVING GEAR CAME OUT OF MESH AND DAMAGED THE DRIVE CHAIN AND REDUCTION GEARBOX. SEE MDR98/0700 FOR SIMILAR DEFECT.