As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER CTR TANK WAS EMPTY AND BOOST PUMPS WERE OFF, CREW NOTICED NR 1 AND NR 2 FUEL QTY DECREASING FASTER THAN NR 3 AND NR 4 WITH ALL ENGS BURNING NORMAL GAS. NR 1 AND NR 2 TANKS EA DECREASED 2200 LBS COMPARE WITH NR 3 & NR 4 TANKS. CREW REBALANCED FUEL. NO FUEL TRANSFER WAS NOTICED TO CTR TANK VIA NR 1 AND NR 2 TANKS. NR 3 AND NR 4 TANKS WERE OK. CREW KEEP REBALANCING FUEL AND MONITORING. REPLACED FUEL SYS MANAGEMENT CARD A5.