As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT TANK IS TRANSFERRING FUEL INTO CENTER TANK. THREE HOURS IN FLIGHT FUEL IS L6.7-C.9-R8.1. FOUND LEFT DEFUELING VALVE STICKING OPEN, SHAFT TO VALVE RIG OUT OF AJUSTMENT. REPLACED LEFT DEFUELING VALVE ACT AND VALVE REF MM 28-26-01 AND 28-26-02. ADJUST THE RIG OF THE VALVE TO ACT. OPS CHECK GOOD.