What was found
RT MAIN GEAR LIGHT DID NOT ILLUMINATE AFTER GEAR WAS SELECTED DOWN. BLEW GEAR DOWN AND PULLED GEAR UPLOCK RELEASE HANDLE IN LAV IAW ABNORMAL CHECKLIST. REPLACED 2 DEFECTIVE RT GEAR DOWN ANNUNCIATOR BULBS W/2 NEW BULBS. VISUALLY INSP GEAR HARNESS AND FOUND OK. RESET EMERG BLOW DOWN AND GEAR MANUAL RELEASE SYSTEM. CYCLED GEAR 15 TIMES, PERFORMED HYD SYSTEM BLEED WITH AIRCRAFT ON JACKS. BLED RESERVOIR AND SERVICED TO 70 PERCENT (FULL AT PSI). SERVICED GEAR BLOW DOWN BOTTLE TO 1900 PSI, GEAR/ IND SYSTEM OPS NORMAL. WORK C/W IAW MM 32-60-00, 12-10-15.