As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT UNABLE TO GET INDICATION OF GEAR DOWN AND LOCKED. FLEW BY TOWER AND THEN LANDED SAFELY. GEAR MOTOR FOUND UNSERVICEABLE BUT WORKED IN THE SHOP AFTER REMOVAL. REPLACED THE PRESSURE SWITCH AND INSTALLED A DIODE AS PER SERVICE LETTER, IN ORDER TO EXTEND THE SWITCH LIFE.