What was found
ON APPROACH, AT 4000 FT, THROTTLE SETTING ABOUT 55 PERCENT, NR 1 ENGINE FLAMMED OUT, APPROACH WAS CONTINUED. THERE WAS 261.5 HRS SINCE O/H ON ENGINE. UNABLE TO DUPLICATE PROBLEM. ACFT HAS MADE SEVERAL TAKEOFF AND LANDINGS SINCE THIS INCIDENT WITH NO FURTHER PROBLEMS.