What was found
PDIS 578 28-41 3074 31OCT19 HNL OPEN U LOGPAGES:2605567 APPROX. 2.2 HRS INTO FLIGHT LEVEL 2 FUEL QTY/USED CHK ALERT CAME ON. COMPLIED WITH QRH PROCEDURE FUEL USED CALCULATING FUEL USED HAD FUEL AT 175K. FUEL GAUGES ADDED UP TO 166K. DIFF OF 9K. WE DETERMINED TNKS 12,3 WERE GOOD. SUSPECTED LEAK FROM AUX OR TAIL. AIR RETURN TO HNL. DUMPED APROX 12K FUEL FOR LND WT. PART 31OCT19 03:01 MC1 U IDENTIFIED PARTS CONTROL-FUEL QTY DATA MPN: 360-112-004 CPN: 2810158 QTY: 1 PART 31OCT19 03:02 MC1 U DELETED PARTS CONTROL-FUEL QTY DATA MPN: 360-112-004 CPN: 2810158 QTY: 1 UNIT PART 31OCT19 03:03 MC1 U IDENTIFIED PARTS CONTROL-FUEL QTY DATA MPN: 360-112-004 CPN: 2810158 QTY: 1 PART 31OCT19 03:04 MC1 U ORDER PART MPN: 360-112-004 CPN: 2810158 QTY: 1 MSN: 1991722 INFO 31OCT19 03:17 MEM R ********************MOCC UPDATE******************** PLEASE WORK IN CONJUNCTION WITH TSI: 28-40/3075 *************THANKS MOCC TECH SERVICES*************