Technical glitch causes chaos at London airports

A technical glitch that caused chaos at London airports on Friday has
now been fixed and air traffic control systems are returning to normal.

Hundreds
of flights to and from the British capital were affected when airspace
was closed temporarily due to what authorities said was a computer
failure at one of the country's air traffic control centres.

Planes
were grounded for about an hour at London Heathrow, one of Europe's
busiest air terminals and at least fifty flights were cancelled by the
ea…
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