As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL IMBALANCE CHRONIC. CONFIRMED UNWANTED TRANFER BETWEEN NR 1 MAIN AND NR 2 MAINS. TANK OPENED, PURGED AND VENTED. REMOVED OLD VALVE, & GASKET. FOUND PITTING ON VLV. ORDERED GASKET NON STOCK ON X6778, LC SOURCING NO ETA. NEED TO REPLACE VALVE AND ACTUATOR. PARTS ORDERED. REMOVED TRANSFER VLV BODY. REMOVED CLAMP FROM ACTUATOR SHAFT. PARTS IN TANK. FINISHED REPLACING VALVE BODY. OPS CHECK GOOD.