What was found
NOTICED EXCESSIVE FUEL BURN ON 3 CONSECUTIVE WAYPOINTS, SHORTLY AFTER, RECEIVED A LEVEL 2 FUEL QTY USED CHECK, POSSIBLE FUEL LEAK, RAN QRH PROCEDURE AND NR 2 TANK OR ENGINE ISOLATED AS SOURCE OF LEAK. FURTHER TROUBLESHOOTING DETERMINED IT WAS NR 2 ENG AS SOURCE, SHUTDOWN THE NR 2 ENGINE IAW QRH. FOUND A CRACKED FUEL ELBOW. REMOVED AND REPLACED IAW AMM 28-00-00-4.