As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2931 THE CREW REPORTED THE MAIN CABIN DOOR WAS DIFFICULT TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. LUBED DOOR FRAME ROLLERS IAW EMB 53-21-02. THE OPERATIONAL CHECK WAS GOOD IAW 52-18-00. THE AIRCRAFT WAS RETURNED TO SERVICE.