As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL OVERRIDE/JETTISON PUMP PART NR 60-72101 DASH 1 RECOVERED FROM THE CENTER WING FUEL TANK OF ACFT 8188 WAS FOUND TO EXHIBIT EXCESSIVE IMPELLER END-PLAY AND GOUGING OF THE IMPELLER UNIT WITH THE INLET ADAPTER. THE THRUST WASHER/BEARING IS SUSPECTED TO HAVE BEEN MANUFACTURED INCORRECTLY. ROOT CAUSE OF FAILURE HAS NOT BEEN IDENTIFIED AS YET.