As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FQIS. NR 4 FUEL TANK GAUGE WENT BLANK IN FLIGHT. TROUBLESHOOTING FUEL SYS, WILL RPLC 7EA PROBES & HARNESS IN NR 4 RT MAIN TANK. HARNESS ON HAND, 1EA PROBE ON T2350 FRM ORD TANK IS OPENED, VENTING & PREP FOR TANK ENTRY. REPLACED PROBES AND WIRE HARNESS.