During the entire conversion time, there was close cooperation between igus and the fault clearing service of the materials handling department at the Cologne/Bonn airport, for example, for the on-site implementation of the cable laying. "The collaboration really worked out great, our skills have been complemented very well," says Detlef Stäbler. The fault clearing service of the materials handling department at Cologne/Bonn airport with 33 employees is responsible for approximately 3,500 facilities. These include escalators, lifts, moving walkways, baggage logistics and, indeed, passenger boarding bridges. Fault clearing service is on the road some 100 kilometres per day on the airport grounds - at a maximum of 20km/h.