What was found
BOS - FLT 4607 - ON INITIAL EXTENSION OF LANDING GEAR, THE RT MLG WOULD NOT ILLUMINATE. LANDING GEAR CYCLED TWICE TO OBTAIN 3 GREEN DOWN AND LOCKED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE WAS NOTIFIED AND DISPATCHED TO THE AIRCRAFT. MAINTENANCE INSPECTED ACFT AND FOUND IT SAFE FOR FERRY FLIGHT TO PSM FOR REPAIRS. UPON ARRIVAL, MAINTENANCE CLEANED AND LUBED RT DRAG BRACE SWITCH, WHEELWELL CONNECTORS, AND ADJUSTED DRAG BRACE SWITCH. PERFORMED RETRACTION TEST. OPERATIONAL CHECKS WERE SATISFACTORY. AIRCRAFT RETURNED TO SERVICE.