As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEADING SELECT LIGHT ON MODE CONTROL PANEL HDG SEL INDICATED ON FMA AT ALL TIMES WHEN SELECTED. GROUNDED - YES. DUE TO HISTORY, REMOVED & REPLACED DFCS MCP REF AMM 22-11-34. ACCOMPLISHED INSTALLATION TEST REF AMM 22-11-34-740-801, LRU REPLACEMENT TEST (GP 32) REF AMM 22-11-34, DFCS LAND VERIFY TEST (GP 49) REF AMM 22-11-00, HGS SYSTEM TEST REF SMM 34-36-00, OPS CK NML.