As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT AFT MAIN TANK FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED AT TOP OF CLIMB. QRH COMPLETED. GROUNDED - YES. RELEASED PER MEL 28-3E. R WING BOOST PUMP LOW PRESSURE. PER B737-800 FIM 28-22 TASK 805, ACCOMPLISHED INITIAL EVALUATION. TANK 2 AFT FUEL BOOST PUMP OPERATES CORRECTLY. THIS CLEARS MEL 28-3E AND MEL 28-1C.