Express Passenger Stair is used for passengers to embark and disembark from the aircraFt. the stairs are a sophisticated version of passenger stairs without the costs of truck-mounted stairs, which save on the cost of fuel oil and maintenanCE, and which also reduced the cost of operation greatly. It's compatible with the A318,A319,A-310,A320,A-321,A300,A310,A-310,A330/340,B-707,B-727,B-737,B757,B-767,DC8,YAK-42,IL-18,IL62,TU-154B,IL-86,MD11,DC-10.