As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AIR TURNBACK FOR INOPERATIVE WEATHER RADAR, THE ELECTRICAL AND MANUAL FUEL DUMP SYSTEMS WERE FOUND TO BE INOPERATIVE. AIRCRAFT LANDED IN MIA, 53,200 LBS OVERWEIGHT. AN OVERWEIGHT LANDING INSPECTION WAS CONDUCTED WITH NO DEFECTS NOTED. THE CAUSE OF THE FUEL DUMP SYSTEM MALFUNCTIONING IS UNDER INVESTIGATION.