--- author: Eric Wagoner date: '2000-05-16T02:51:10' draft: false title: England's Civil Aviation Authority has --- England's Civil Aviation Authority has again shown that [mobile phones 'a danger to aircraft'](http://news.bbc.co.uk/hi/english/uk/newsid_750000/750893.stm), as reported in this BBC story. Effects included triggering false cockpit warnings and malfunctioning of other systems. The story also mentions a man who was sentenced to a year in prison after refusing to turn off his mobile phone. He made no calls, but just having the phone on was danger enough.