As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FUEL QUANTITY INOPERATIVE. CHECKED INDIVIDUAL LEFT FUEL TANK PROBE UNITS DISPLAYING ERRANT VALUES ON MAINTENANCE PAGES. TANK PROBE NR 6 REPORTS 0.0 WHILE SURROUNDING PROBES 5 & 7 SHOWS VALUES GREATER THAN 0.0. PER MAINTENANCE TIP 777 MT28-UA9, SUGGEST REPLACE SINGLE PROBE AT FAULT, ORDERED NR 6 PROBE 483-0035, OSTF# P5315. MAT FAULT HISTORY SHOWS RT CENTER NR 9 PROBE FAULTING. VTOED LEFT WING. PROBE 6 CHECKS OKAY.