As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3508 THE CREW REPORTED THE MAIN CABIN DOOR WAS DIFFICULT TO OPEN AND CLOSE. THE AIRCRAFT WAS REMOVED FROM SERVICE. LUBRICATED MAIN CABIN DOOR IAW EMB SP 20-30-02. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.