As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L CTR FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED IN FLIGHT WITH 11.0 FUEL IN CTR TANK. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 28-22 TASK 801. DETERMINED L/H CTR MOTOR IMPELLER NOT WORKING. REMOVED AND REPLACED MOTOR IMPELLER PER B737-800 AMM 28-22-41. PERFORMED OPS CHECK PER AMM 28-22-41-710-801. OPS CHECK GOOD.