As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL LEAKING OUT OF LEFT FUEL DUMP MAST. STREAM IS DIAMETER OF PENCIL. PERFORMED TESTED FUEL FUEL JETTISON SYS PER MM. FOUND NO MORE FUEL LEAK FROM JETTISON NOZZLE VALVE. NEED MORE RED PER MEL. DEACTIVATED FUEL JETTISON NOZZLE VALVE TO CLOSE POSITION PER MEL 2831H, CONFIRMED NO MORE FUEL LEAKAGE. FAULTED VALVE V28166 AT FAULT, PART NOT AVAIL. REPLACED ACTUATOR. OP CHK ACPD AND ALL MESSAGES CLEARED.