What was found
AT TOP OF DESCENT FROM FL410 NR 1 ENGINE FLAMED OUT, WOULD NOT RESTART PER CHECKLIST. ENGINE WAS WINDMILLING FOR ABOUT 18 MINUTES, FUEL CONTROL UNIT PROCEDURES C/W. OIL PRESSURE DURING WINDMILLING AT 31 PSI. REMOVED AND REPLACED NR 1 IGNITION EXCITER BOX AND SYSTEM OPS CHECK GOOD IAW BMM 74-10. COMPONENT CHANGE INFORMATION: P/N OFF 10-353875-4, S/N OFF 86224, (INOPERATIVE) MANUFACTURER: BENDIX. REMOVED AND REPLACED NR 1 ENGINE FUEL PUMP PER MM 73-11-16-IDLE LEAK CHECK WAS GOOD. FULL POWER RUN, OPS CHECK GOOD FOLLOWING DAY IN AUS.