As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK INFLIGHT T837/06JUL, CREW REPORTED UNWANTED FUEL TRANSFER. RETURNED TO JFK AND LANDED WITHOUT INCIDENT. REPLACED LT WING OUTER TANK REFUEL AND DEFUEL VALVE ACTUATOR AND REFUEL DEFUEL VALVE CANNISTER. SYSTEM GROUND CHECKED NORMAL OPERATION. (A)