As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST BEFORE LANDING WE HAD A CABIN DOOR OPEN CAS MESSAGE. WHILE ON THE GROUND WE TRIED TO RESET IT USING THE PROCEDURE IN THE QRH. STEP FOUR WAS UNSUCCESSFUL, WE COULD NOT GET THE CHECK HANDLE /PUSH TO OVERRIDE LIGHT TO FLASH. : REMOVED AND REPLACED NC105 CABIN DOOR MONITOR PCB PER AMM 24-60-40. OPS CHECKS GOOD NO FURTHER ACTION REQUIRED.