As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST PRIOR TO DESCENT, THE CENTER TANK QUANTITY AND TOTAL FUEL QUANTITY WENT BLANK AND STAYED BLANK. ACFT GROUNDED. MAINTENANCE AND TROUBLESHOOTING PERFORMED ON TSR818515. REMOVED AND REPLACED ALL CENTER FUEL TANK UNITS AND COMPENSATORS IAW AMM 28-41-21-000-801, AND 28-41-21-400-801. PERFORMED FUEL QUANTITY INDICATING SYSTEM OPS TEST IAW AMM 28-41-00-710-801. TESTS CHECKED GOOD.