As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING APPROACH FLIGHT, PILOT SELECTED LANDING GEAR DOWN. LANDING GEAR CONTROL CIRCUIT BREAKER POPPED AND WOULD NOT RESET. PILOT WAS INSTRUCTED TO CARRY OUT AN EMERGENCY GEAR EXTENSION AND FOLLOW LANDING PROCEDURES IN PILOT'S OPERATING HANDBOOK. UPON INVESTIGATION, THE CONNECTION TO LANDING GEAR C/B WAS LOOSE AND ARCHING. THE CONNECTION WAS CLEARED AND SECURED. NO OTHER FAULTS WERE FOUND. SUBSEQUENT GEAR SWING AND TEST FLIGHT C/O. SERVICEABLE.