As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4085 THE FLIGHT ATTENDANT REPORTED THE MAIN DOOR WAS DIFFICULT TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. LUBRICATED THE MAIN DOOR FRAME ROLLERS PER AMM 53-21-02. NO FURTHER DEFECTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.