Because of constuction works at the hospital in Duisburg rescue helicopter Christoph 9 (EC.135 BMI) will be based at Düsseldorf airport for about six months.
Source and more information (in German language):
http://www.duesseldorf-magazin.info/422 ... &tx_ttnews" onclick="window.open(this.href);return false;[tt_news]=8973&tx_ttnews[backPid]=4225&cHash=a184a1f7fd