Here's the CFMU info on the failure..... .. .<a href="http://www.cfmu.eurocontrol.be/chmi_public/ciahome.jsp?serv1=aim&aim=00044713" target="_blank">http://www.cfmu.eurocontrol.be/chmi_public/ciahome.jsp?serv1=aim&aim=00044713</a>. .. .Looks like a failure of the Swanwick systems, not NAS which remains at West Drayton (and which Swanwick can't operate without). .. .Hopefully Swanwick will be back asap. .. .rgds BEX