As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT DURING THE MAIN CABIN DOOR CLOSURE FOR FLIGHT THEY RECEIVED AN WARNING ANNUNCIATOR THAT THE MAIN CABIN DOOR VENT DOOR WAS INOPERATIVE. THE CABIN DOOR VENT SOLENOID WAS FOUND TO BE DEFECTIVE AND WAS REPLACED WITH A NEW UNIT.