As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE LFT CTR BOOST PUMP LIGHT CAME ON STEADY WITH 900 LBS. FUEL IN CTR TANK. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 28-22 TASK 801. LEFT CENTER BOOST PUMP OPS CHECK GOOD. ALSO REF 737 SYSTEMS HAND BOOK. FUEL, SECTION 12.010 PAGE 11.