As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX FLIGHT NR 2442: NR 1 FUEL TANK LOW CAUTION ON. AIRCRAFT RETURNED TO BLOCK. MAINTENANCE REFUELED AND DEFUELED A/C SEVERAL TIMES LEAVING 2000 LBS A SIDE. NO DEFECTS NOTED. OPERATION PERFORMED IAW Q400 MM TASK 12-10-28-650-802 AND 12-10-28-650-801. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.