What was found
RIGHT MAIN LANDING GEAR INDICATED UNSAFE. CHANGED LIGHT BULBS, NO JOY. CKD FLAPS 35, NO HORN. FLY BY TOWER INDICATING GEAR WAS DOWN. LANDED STRAIGHT AHEAD - GEARS PINNED. T/S IN WORK NOW. MAYBE BAD SWITCH RIGHT GEAR DOWN. ***SUPPLEMENTAL M RR*** REMOVED AND REPLACED RT MLG DOWNLOCK SWITCH IAW MM 32-60-00 OP S CHECK GOOD. P/N ON AND OFF H14-1003, S/N ON TAG 00401758 S/N OFF 8 1640