As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - "FUEL AFT XFER" INOP STATUS MESSAGE ON STATUS PAGE. // PER TSM TASK 28-27-00-810-829-A FOUND FUEL TRIM TANK ISOLATION VALVE FAULTING (FIN 702QN). REMOVED AND REPLACED FUEL TRIM TANK ISOLATION VALVE ACTUATOR (FIN 702QN) PER AMM 28-27-52-400-802-A. OK FOR SERVICE.