As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE AT FL390 CTR TANK QUANTITY & TOTAL FUEL QUANTITY DISPLAYS BLANKED. FMC AMBER P RST LIGHT ILLUMINATED. FMC SCRATCH PAD NOTE "VERIFY GW & FUEL QTY" ILLUMINATED. DISPLAY RETURNED TO NORMAL AFTER ABOUT 60 MINUTES. FQIS FFR SHOWS 2 FLTS WITH CENTER QTY BLANK. ONE OR MORE TANK UNITS OPEN FAULT. CENTER TANK INDICATOR CURRENTLY GOOD. CURRENT STATUS AND GROUND TEST GOOD.