As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE THE 2 AMP MLG CONTROL CIRCUIT BREAKER TRIPPED AND WASN''T ABLE TO RESET. EXTENSIVE TESTING COULD NOT DUPLICATE FAULT. THE LANDING GEAR RELAY WAS REPLACED AND FAULT REAPPEARED ON TEST FLIGHT. EXTENSIVE INSPECTION OF WIRING FROM THE C/B TO THE LANDING GEAR SERVICE VALVE WAS CRRIED OUT.MAINTENANCE DISCOVERED THE WIRE WAS CHAFFED UNDERNEATH THE CABIN ENTRANCE FLOOR AT THE JUNCTION OFTHE FLOOR AND WALL.