What was found
WHILE LANDING, ON GEAR DOWN, LT MAIN GEAR INDICATOR DID NOT LIGHT. AFTER RUNNING CHECKLIST, BLEW GEAR DOWN, RELEASED MAIN GEAR LOCKS, YAWED ACFT, LT MAIN STILL WAS UNLIT. TOWER CONFIRMED THREE GEAR DOWN, LANDED UNEVENTFULLY. UPON FURTHER INVESTIGATION, FOUND LT GEAR INDICATOR BULB BURNED OUT. REPLACED BULB, GEAR INDICATIONS WERE NORMAL. JACKED ACFT, PERFORMED FULL HYD SYS BLEED. DOWN JACKED ACFT & SERVICED HYD RESERVOIR. WORK DONE IAW MM CH 12-12-02 & 33-10-00. COMPLIED WITH LG FUNCTIONAL CHECK, OPERATIONS CHECKED GOOD IAW MM 32-10-00.