What was found
NNNDURING CRUISE FLT W/ENG ANTI-ICE ON (TAT -1), NR 4 ENGINE FLAMED OUT. ENG INDICATIONS WERE NORMAL. RESTART ACCOMPLISHED. ENG OPERATED NORMALLY FOR REMAINDER OF FLT. PERFORMED NR 4 ENG FLAME OUT T/S CHART PER AMM 71-00-00-1 FIG 139. INSPECTED CHIP DETECTORS, FUEL FILTER, CDP TUBE FOR LEAKS, FUEL CONTAMINATION, N1 & N2 ROTORS, NO ABNORMALITIES FOUND. ACCOMPLISHED ENG MAX PWR ASSURANCE RUN PER AMM 71-00-00-5 ADJ/TEST. NR 4 ENG OPS CHECKED NORMAL. A/C RETURN TO SERVICE.