CNNW Wolf December 12, 2014
Failure. The n. A. T. S. Put out a tweet saying they are having trouble with the control system. Its likely what helps the planes line up and take off. Its a very, very congested region. There are flights, of course, that would fly over london going to north america, going into europe, into south africa as well. So it has caused major chaos. Many, many flights are being canceled and its not just if you are flying into london. Other flights are being diverted to places like amsterdam and north of...
Source: archive.org