As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED DURING CRUISE IMMEDIATELY AFTER PERFORMING FUEL CROSS FEED CHECK. LIGHT STAYED ON APPROX 2 MIN UNTIL PUMP WAS TURNED OFF. AFTER PUMP BEING OFF FOR 5 MINUTES, TURNED PUMP BACK ON AND LOW PRESSURE LIGHT WENT OUT AND STAYED OUT REMAINDER OF FLIGHT. GROUNDED - YES. REF B737-800 FIM 28-22 TASK 803. (1) C/B RESET. COULD NOT DUPLICATE FAULT. OPS TEST NORMAL. GROUND VERIFICATION GOOD.