As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PER T/C NG-28FCD-18090-1, REPLACE ANY TANK OR COMPENSATOR UNIT OF FUEL TANK NR 2 THAT ARE OUT OF LIMITS. GROUNDED - YES. TANK UNIT F9 IS OUT OF LIMITS, REF AMM 28-41-21-710-801. REMOVED AND REPLACED F9 UNIT IN NR 2 TANK, REF AMM 28-41-21. F9 IS NOW WITHIN LIMITS.