As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNWANTED FUEL TRANSFER, IN CLIMB-OUT GOT A 600LB FUEL IMBALANCE NR 2 TANK LOW. IMBALANCE OCCURRED WHEN BURNING 2000 LBS OUT OF CTR TANK. ONCE CTR TANK FUEL DEPLETED, THE IMBALANCE REMAINED AT 600 LBS. REPLACED CENTER TANK CHECK VALVE AND BOOST PUMP.