As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FO'S COURSE DISPLAY WINDOW ON MCP IS BLANK. GROUNDED - YES. REPLACED DFCS MODE CONTROL PANEL REF AMM 22-11-34-400-801, OPS NORMAL REF MM 22-11-34-740-810. ACCOMPLISHED DFCS MCP LRU REPLACEMENT TEST, OPS NORMAL REF MM 22-11-34/501. ACCOMPLISHED LAND VERIFY TEST GRP BITE 49, ALL TEST PASSED REF MM 22-11-00/201. ACCOMPLISHED HGS FCC/AT SENSORS DATA TEST. OPS NORMAL REF MMS 34-36-00/500.