As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 FUEL QUANTITY INDICATOR HAS GONE BLANK 5 TIMES INFLIGHT CAUSING THE TOTAL FUEL INDICATOR TO GO BLANK. HAS DONE IT WITH CENTER PUMPS ON AND OFF. FUEL INDICATORS WILL COME BACK AFTER 15 SECONDS OR SO. GROUNDED - YES. CURRENTLY SYSTEM WORKS AND FQIS BITE PASSES BUT FAULT HISTORY IN FQIS HISTORY PAGE HAS NUMEROUS FUEL PROCESSOR FAULTS, CODE 28-41209. REMOVED AND REPLACED FQPU IAW B737-800 AMM 28-41-81. OPS CHECK GOOD.