As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 FUEL TANK PROBE UNIT F7 AND F9 CAPACITANCE OUT OF LIMITS. IT WILL REQUIRE TANK ENTRY TO REPLACE F7 AND F9. ACFT GROUNDED. FUEL QUANTITY INDICATION INOPERATIVE NR 1 TANK. ACCOMPLISHED CAPACITANCE MEASUREMENTS ALL PROBES NR 1 TANK, ALL PROBES WITHIN LIMITS IAW AMM 28-41-21-710-801.