It may not affect Zürich directly, but it is nevertheless big news in the tram world. In an attempt to get to the bottom of Combino's troubles, Siemens shipped Freiburg 272 to Prague for structural tests. These tests proceeded to total destruction and showed structural weaknesses, especially concerning the roof structure which is liable to cave in in case of a serious accident. Siemens ordered all Combinos with more than 120'000km to be withdrawn. This affects Freiburg and Basel as well as parts of the Augsburg and Erfurt fleets and others. The withdrawal took affect from today (13th March 2004). Serious vehicle shortage affect the systems concerned.