As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT F/O'S COURSE INDICATION BLANK. ACFT GROUNDED. R & R DFCS MODE CONTROL PANEL IAW AMM 22-11-34-000-801 AND 22-11-34-400-801. ACCOMPLISHED MCP INSTALLATION TEST IAW AMM 22-11-34-740-801. PERFORMED DFCS GROUP NR 32 LRU INTERFACE TEST FOR MCP AND GROUP NR 49 LAND VERIFY TEST IAW AMM 22-11-00. PERFORMED HGS SENSOR TEST FOR FCC/AT IAW SMM 34-36-00. ALL TESTS PASS. ACFT REMAINS QUALIFIED CAT IIIA AUTOLAND AND HGS OPS.