As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ERRATIC ENGINE ROTATION AND A CLUNKING SOUND AT THE VERY BEGINNING OF ATTEMPTED ENGINE START, THE ENGINE START WAS THEN ABORTED. DURING SEVERAL ATTEMPTS TO START THE ENGINE THERE WAS NO SOUND OR ENGINE ROTATION ON PRESSING THE STARTER SWITCH. DURING INSPECTION, THE STARTER GENERATOR GROUND ATTACHMENT POINT WAS FOUND BADLY BURNT.