What was found
(CAN) AFTER GEAR DOWN SELECTION, FLIGHT CREW DID NOT GET A GREEN LIGHT INDICATION OF RIGHT MAIN GEAR BEING DOWN & LOCKED. NO GEAR IN TRANSIT LIGHT WERE ILLUMINATED. AFTER WIGGLING THE LIGHT SOCKET, RIGHT MAIN GEAR GREEN INDICATOR LIGHT ILLUMINATED, INDICATING DOWN & LOCKED. CREW DID A LOW FLY BY FOR VISUAL INSPECTION OF GEAR BY GND CREWS. UNEVENTFUL LANDING WAS COMPLETED. THE LIGHT SOCKET WAS REPLACED & FUNCTION TESTED SERVICEABLE.