What was found
EN ROUTE OAK TO TOL AT FL 37, SAT MINUS 48, FUEL QTY OF RESPECTIVE TANK 8000 LBS, NR 4 ENGINE FLAMED OUT. CREW ACCOMPLISHED SUCCESSFUL RESTART IAW COMPANY PROCEDURES. FLIGHT CONTINUED WITH NO FURTHER EVENTS. MAINTENANCE TROUBLESHOT THE EVENT IAW CFMI MM FAULT 57. MAINTENANCE FOUND AND CLEANED AND OBSTRUCTION FROM THE CDP AND CBP LINES, REPLACED THE ENGINE FUEL FILTER, AND OPERATIONALLY CHECKED THE ENGINE PRIOR TO RETURNING THE AIRCRAFT TO SERVICE. (M)