What was found
EWR/IAD - FLT 6222 - DURING LANDING AT 0910 HOURS ON 6-27-97, THE FLIGHT CREW EXPERIENCED A RT MLG PRIMARY GREEN INDICATOR LIGHT BEING INOPERATIVE. IT WAS REPORTED THE STANDBY INDICATOR SYSTEM WAS PERFORMING NORMALLY. THE FLIGHT LANDED AT IAD WITH NO FURTHER INCIDENT. MAINTENANCE TROUBLESHOT SYSTEM AND FOUND THE PRIMARY GEAR INDICATOR LAMP HAD BLOWN OUT. MAINTENANCE REPLACED THE LAMP IAW MAINTENANCE PROCEDURES AND RETURNED THE AIRCRAFT TO SERVICE. (X)