What was found
ON FLIGHT 4048 THE FLIGHT ATTENDANT REPORTED THE MAIN CABIN DOOR WAS VERY HARD TO OPEN. NOTICED UPPER STOPS DRAGGING ON UPPER FUSELAGE STOPS WHEN OPENING & CLOSING DOOR. THE AIRCRAFT WAS REMOVED FROM SERVICE. FOUND ROLLERS BINDING. LUBED ROLLERS & SEALS IAW EMB-140 53-21-02 AMM AND 52-18-00 AMM, THE OPERATIONAL CHECK WAS GOOD. NO PARTS REMOVED OR REPLACED. NO FURTHER DEFECTS NOTED AT THIS CURRENT TIME. THE AIRCRAFT WAS RETURNED TO SERVICE.