As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER FUEL INDICATION WENT BLANK ALONG WITH FUEL TOTALIZER ON CENTER SCREEN. HAPPENED AT LEAST TWICE DURING CRUISE. GROUNDED - YES. FAULT MSG 28-41309, 28-41315 PERFORMED FQIS BITE REF B737-800 FIM 28-41 TASK 801. FOUND NO FAULT 28-41309 IN HISTORY, NO CURRENT FAULTS. RAN GROUND TEST PASSED. NO FAULTS NOTED. 28-41309 INTERMITTENT. NO 30 DAY HISTORY.