As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN GEAR WAS SELECTED DOWN, THE GEAR STARTED DOWN THEN TRIPPED THE LANDING GEAR CIRCUIT BREAKER. REMOVAL OF THE GEAR MOTOR REVEALED THE ARMATURE ARCED AND BURNED. ONE OF THE BRUSH LEADS WAS WRAPPED AROUND THE STUD HOLDING THE LEAD. THIS HELD THE BRUSH OFF OF THE ARMATURE CAUSING THE MOTOR TO FAIL. THE BRUSHES WERE APPROXIMATELY ONE-HALF WORN.