As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL DUMPED PER ABNORMAL CHECKLIST AT MAXIMUM LANDING WEIGHT SWITCH PUT IN DRAIN POSITION, BUT CONTINUED DUMPING MANUALLY PUT IN DRAIN POSITION FOR 5 MINUTES, REMAINDER OF ELECTRICAL CYCLE OK. TRANSFERRED TO DMI 18610 IN ACCORDANCE WITH MEL 28-9-1. MANUAL FUEL DUMP SYSTEM IS OPERATIVE. REMOVED AND REPLACED ACTUATOR MOTOR IN ACCORDANCE WITH MM 28-30-2. OPERATIONAL CHECK NORMAL, NO LEAKS NOTED, THIS CLEARS DMI 18610.