As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT IN AUTOPRESSURIZATION MODE, CABIN WENT TO MANUAL TO CLIMB CABIN UP TO LANDING ON AUTOPILOT. NO MESSAGE ON ELECTRONIC CENTRALIZED A/C MONITORING. FOUND LANDING/ELEVATION SWITCH FAULTY. REPLACED ANTI-ICE LIGHTS PRESSURE CONTROL PANEL ASSEMBLY THAT INCLUDES LANDING/ELEVATION SWITCH.