The self-propelled passenger stairs model СТ5040JKT and СТ5060JKT is designed for boarding and unloading of passengers, crew and technical personal access to the AC and to serve various types of aircraft with door sill heights from 2200 to 5800 mm. The self-propelled passenger stairs is characterized by high reliability, wide range of usage, application of advanced technologies, excellent appearance, functionality, simplicity and safety in use in harsh climatic conditions on a snow-covered apron. The range of service temperature is from -40 to +50 degrees 0C. The self-propelled passenger stairs are suitable for servicing both domestic and foreign aircrafts. The passenger stairs model СТ5060JKT is mounted on serial vehicle chassis ISUZU 600P with rear-axle drive and 4HK1 diesel engine with emission EU 5. The stairs model СТ5040JKT is mounted on serial vehicle chassis JMC with rear-axle drive and diesel engine with emission EU 5. Optional possibility of installation of canopy or fully closed gallery on the upper platform and the ladder is possible. The color upon customer’s request (RAL by request). It is also possible to install other options which are to be discussed to the customer per each order separately.