What was found
ON APPROACH, LANDING GEAR WAS SELECTED DOWN AND THERE WAS NO INDICATION OF GEAR BEING DOWN AND LOCKED (GREEN LIGHTS). THE GEAR HAD APPEARED TO TO ACT AND SOUND NORMAL DURING EXTENSION. CIRCUIT BREAKERS WERE CHECKED AND THE GEAR WAS CYCLED UP AND INDICATED BOTH MAIN GEAR DOWN AND LOCKED. GEAR WAS CYCLED BACK DOWN AND NO GEAR INDICATION WAS APPARENT. ACFT DIVERTED AND GEAR WAS VERIFIED WITH TAXI LIGHT OPERATION ON MAIN GEAR AND VISUAL CHECK BY TOWER PERSONAL. ACFT LANDED AND WAS INSPECTED BY EMERGENCY CREW AND RETURNED TO HANGAR FOR INSPECTION AND REPAIR.