As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER ONE MAIN FUEL TANK, AFT FUEL PUMP, LOW PRESSURE LIGHT ILLUMIINATED. RAN QRH PROCEDURE DUE TO LIGHT REMAINING ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED #1 MAIN FUEL AFT PUMP IAW B737-800 AMM 28-22-41. OPS CHECK GOOD. NO LEAKS NOTED AT THIS TIME.