As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO 1 ENG FUEL RAPIDLY DROPPED AFTER SHUTTING OFF CENTER TANK PUMPS PERFORMED FIM 28-41 TASK 814, FQIS BITE GROUND TEST PASSED. SUMPED ALL FUEL TANKS, NO CONTAMINATION FOUND. CHECKED FUEL TANK QUANTITIES USING FUEL MEASURING STICKS, QUANTITY MATCHES FLIGHT DECK INDICATIONS. PERFORMED ENGINE RUN PER 71-00-00, NO DEFECTS NOTED. OK TO CONTINUE.