What was found
NR 3 ENGINE FLAMED OUT AT 35,000, MACH .84. COMPLETED IN-FLIGHT ENGINE FAILURE CHECK LIST. COMPLETED IN-FLIGHT ENGINE START ABNORMAL PROCEDURE, AND IN-FLIGHT ENGINE SHUTDOWN CHECK LIST (5 PSI OIL). TROUBLESHOT PER CFM 56 M/M 71-00-00, FAULT 51. NO DEFECTS FOUND VISUALLY OR DURING ENGINE GROUND RUN TEST. REMOVED AND REPLACED FUEL BOOST PUMP PER M/M 73-10-2. LEAK CHECKED OK. PERFORMED MAX POWER ASSURANCE CHECK PER JRH, AND NO DEFECTS NOTED. ENGINE OPS CHECKED GOOD. OK TO CONTINUE.