As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED UPON DESCENT AT FL430 THE DOOR WARNING ANNUNCIATOR ILLUMINATED AND REMAINED ILLUMINATED UNTIL SHUTDOWN. THE MAINTENANCE VENDOR TROUBLESHOT AND DETERMINED THAT THE CABIN DOOR PCB WAS DEFECTIVE. THE MX VENDOR REMOVED THE DEFECTIVE PCB AND REPLACED WITH A NEW UNIT. OPS CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE