As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTS V/S MODE SELECT SWITCH LIGHT PARTIALLY INOP. GROUNDED - YES. REMOVED AND REPLACED DFCS MODE CONTROL PANEL PER AMM 22-11-34. PERFORMED MODE CONTROL PANEL INSTALLATION TEST PER AMM 22-11-34-740-801 AND DFCS GROUP 49 (LAND VERIFY) TEST PER AMM 22-11-00-700-801 - ALL TESTS PASS.