As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ARRIVAL, THE CREW REPORTED THAT THE MAIN CABIN ENTRY DOOR WOULD NOT OPEN FROM THE INSIDE. MAINTENANCE PERSONNEL INSPECTED THE MAIN CABIN DOOR, SEAL AND SEAL RETAINER AND OPERATED THE MAIN CABIN DOOR. NO DEFECTS WERE NOTED AND THE AIRCRAFT WAS RETURNED TO SERVICE.