As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UPON INITIAL START OF DAY, STARTER MADE GRINDING NOISE.UPON REMOVAL AND DISASSEMBLY OF STARTER. IT WAS VISUALLY EVIDENT THE GEAR ON THE ARMATURE WAS MISSING 4 TEETH AND THE GEAR AT THE BASE OF THE BENDI X WAS MISSING ONE TOOTH. THE FLYWHEEL WAS INSPECTED SERVICEABLE, THE STARTER WAS REPLACED WITH AN OVERHAUL UNIT AND THE ENG WAS GROUND RUN SATISFACTORY.