As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STARTER DRIVE MOTOR WAS FOUND LOOSE FROM BENDIX ASSEMBLY DURING 100 HOUR INSPECTION. MOTOR IS ATTACHED TO BENDIX WITH 2 BOLTS THREADED INTO BENDIX HOUSING. BOTH BOLTS HAD LOCKING TAB WASHERS STILL IN-PLACE AND UNDISTURBED. FEMALE THREADS WERE PULLED LOOSE FROM BENDIX HOUSING CAUSING BOLTS TO BECOME LOOSE.