As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG WOULD NOT START. ROTATION OF PROPELLER BY HAND PRODUCED A GRINDING SOUND. ENG GEARBOX WAS ACCESSED. THE MAIN SHAFT FUEL DRIVE SPUR GEAR WAS FOUND CRACKED IN HALF & SEPARATED. SEPARATED SPUR GEAR CAUSED LOSS OF FUEL DRIVE, CAUSING ENG TO NOT START. THE GEARBOX WAS RE-ASSEMBLED USING A SERVICEABLE SPUR GEAR.