As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 3044 THE MAIN DOOR WAS HUNG UP AND THE FLIGHT ATTENDANT WAS UNABLE TO OPEN FROM INSIDE. THE AIRCRAFT WAS REMOVED FROM SERVICE. SERVICED MAIN DOOR PER EMB AMM 12-21-15 NO OTHER DEFECTS NOTED. NO PARTS REMOVED OR REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.