As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT AFTER LANDING RECEIVING A BLUE PROX SYSTEM FAULT ANNUNCIATOR. THE MAINTENANCE PROVIDER TROUBLESHOT AND DETERMINED A DEFECTIVE LANDING GEAR PROXIMITY SWITCH AS AT FAULT. REMOVED AND REPLACED THE LEFT MAIN LANDING GEAR DOWNLOCK SENSOR WITH A NEW PROXIMITY SWITCH. RIGGING AND OPERATIONAL CHECKS WERE PERFORMED AND FOUND TO BE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.