As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT CENTER FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED. GROUNDED-YES. REF B737-800 FIM 28-22 TASK 801, COULD NOT DUPLICATE FAULT. OPS TESTS NORMAL. AS A PRECAUTION, REMOVED AND REPLACED CENTER TANK LEFT BOOST PUMP RELAY, REF B737-800 AMM 28-22-18/401 AND CENTER TANK LEFT BOOST PUMP LOW PRESSURE SWITCH, REF AMM 28-42-11/401. OPS TESTS NORMAL. GROUND VERIFICATION GOOD.