As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCP HAS NO LIGHTING. THIS OCCURED AFTER EXTERNAL POWER WAS INTERUPTED SEVERAL TIMES. GROUNDED - YES. VERIFIED DEFECT, CYCLED A/C PWR REF B737-800 AMM 20-60-99, MCP LIGHTING WAS RE-ESTABLISHED. ACCOMPLISHED DFCS AUTO TEST AND BITE B737-800 FIM 22-11 TASK 801 NO FAULTS, ACCOMPLISHED MODE CONTROL PNL TESTS REF FIM 22-11 TASK 803 ALL TESTS PASS.