As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LEAKING STREAM OF FUEL IN FLIGHT FROM UNDERSIDE LH OUTBOARD WING. PICTURE ATTACHED FOUND LEFT SURGE TANK FUEL SUMP VALVE STUCK IN THE OPEN POSITION. REMOVED AND REPLACED LEFT SURGE TANK DRAIN VALVE REF AMM ARRANGEMENT. 28-11-21-400-801. REF FIM 28-21 TASK 826 AND VERIFIED FUEL DID NOT TRANSFER IN THE LEFT SURGE TANK WHEN LEFT MAIN TANK FILLED TO VTO AT 8630LBS. REF SDS 28-10-00-001 FOR FUEL TANK