As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STARTER WAS INSTALLED BY FACTORY DURING ENGINE OVERHAUL. STARTER HAS STEADILY WEAKENED SINCE INSTALLATION OF THE ENGINE ON THE AIRCRAFT. OPENED STARTER AND FOUND BRUSHES AND COMMUTATOR SEVERELY BURNED. IT IS THE SUBMITTERS OPINION THAT THIS PERMANENT MAGNET STARTER IS UNDER DESIGNED TO TURN AN ENGINE WITH 12 VOLTS.