As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIODE CR 406 SHORTED, ALLOWING POWER FROM LT FUEL TRANSFER CIRCUIT TO FEED BACK TO THE RT FUEL TRANSFER CIRCUIT. WHEN LT TP FUEL SHUT OFF VALVE WAS COMMANDED ON AND RT TIP FUEL SHUTOFF VALVE COMMANDED OFF. THE RT TP FUEL SHUT OFF VALVE HAD POWER ON PINS A AND B TELLING IT TO OPEN AND CLOSE AT THE SAME TIME, WHICH CAUSED VALVE FAILURE.