What was found
NR 3 ENG FLAMED OUT ON T/O PASSING 4000 FT AGL 220 KIAS. ATTEMPTED RESTART UNSUCCESSFUL, ENG SHUTDOWN CHECKLIST COMPLIED WITH. CHECKED NR 3 ENG, IGN SYS CK'D NORMAL, OPS CK'D NR 3 FUEL HEAT VALVE CK'D NORMAL. REPLACED NR 3 ENG MAIN FUEL FILTER. RAN ENG LEAK CK'D GOOD, INSPECTED MOISTURE TRAP AND CDP AIR LINE ALL CK'D GOOD. ENG INLET, AND EXHAUST VISUALLY INSPECTED GOOD. COMPLIED W/FLAME OUT TROUBLESHOOTING PER MM 72-00-07A, PWA AND SUMPED NR 3 MAIN FUEL TANK, NO WATER FOUND. RAN NR 2 ENG TO T/O PWR, CK'D NORMAL, OK TO CONTINUE.