What was found
JFK/BOS - FLT 6478 - DURING APPROACH AT 1020 HOURS ON 6-29-98, AIRCRAFT MADE A SCHEDULED LANDING AT BOS WITH ONE DISCREPANCY WHICH WAS LT GEAR DOWNLOCK INDICATION FLICKERS ON AND OFF. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND CLEANED DOWNLOCK SYSTEM AND COULD NOT DUPLICATE PROBLEM. OPS CHECK OK. AIRCRAFT RELEASED AND RETURNED TO SERVICE. (X)