What was found
PILOT REPORTED DURING ATTEMPTED ENGINE START, A GRINDING NOISE WAS HEARD AND PROPELLER DIDN'T TURN. DISCOVERED CLUTCH SPRING IN STARTER ADAPTER HAD BROKEN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PILOT REPORTED DURING ATTEMPTED ENGINE START, A GRINDING NOISE WAS HEARD AND PROPELLER DIDN'T TURN. DISCOVERED CLUTCH SPRING IN STARTER ADAPTER HAD BROKEN.