What was found
DURING GEAR EXTENSION, THE LT MLG LIGHT DID NOT ILLUMINATE GREEN. COMPLETED THE LANDING GEAR WILL NOT EXTEND CHECKLIST INCLUDING THE NITROGEN BLOW DOWN. ALSO PERFORMED ROTARY TEST TO CHECK STATUS OF LT GEAR BULB, CREW DETERMINED THE BULB WAS INOPERATIVE. LANDING AND TAXI WAS NORMAL. R & R FOUR LANDING GEAR LIGHT BULBS. RESET AND SERVICED GEAR BOTTLE AND PERFORMED LANDING GEAR BLEED AND OPS CHECKED GOOD. WORK PERFORMED IAW MM 32-01-00.