What was found
DURING CLIMBOUT, LEFT MAIN GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR RETRACTION. CREW RECYCLED GEAR WITH SAME RESULTS. FLIGHT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. NOTE: GEAR INDICAITONS WERE NORMAL WHEN GEAR WAS EXTENDED FOR LANDING. MAINTENANCE CYCLED GEAR NUMEROUS TIMES ON GROUND. DISCREPANCY COULD NOT BE DUPLICATED. REPLACED DOWNLOCK AND UPLOCK SENSORS AS A PRECAUTION, OPERATIONAL CHECK NORMAL.