ES64U2 040 of the private railway company Cargoserv is sometimes used by the WLB (Wiener Lokalbahnen) when of one of their ES64U2 engines is not working because of a service, etc.
The picture was taken on Feb 15th 2005 near station Praterkai. 

This picture was taken by <A HREF="MAILTO:sybic@chello.at">Sybic</A> - <A HREF="http://www.bahnnews-austria.at" target="_blank">www.bahnnews-austria.at</A>