As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TEETH FOUND MISSING DURING INSPECTION. SERVICEABLE SUPPORT ASSEMBLY INSTALLED. SUSPECT PROBLEM WITH THE STARTER/RING GEAR ENGAGEMENT. A CHIPPED TOOTH WAS ALSO FOUND ON THE STARTER. STARTER P/N BC315-100-4 WAS ALSO REPLACED AT THE SAME TIME.