In the United States, flights across the country were suspended for more than four hours on November 13.
The reason was a large-scale malfunction in the air traffic control system. By this evening the ban was lifted, but the airlines are still restoring their schedules.
According to Transport Minister Sean Duffy, outdated routers and switches could not cope with the flow of data. The dispatchers began to experience disturbances in communication and in receiving radar information. For safety reasons, all flights were banned. Social networks are discussing that such a large failure has not occurred since 9/11.
Now, Duffy is asking Congress for $50 billion to upgrade air traffic control. Copper lines from the 1980s are still in use in some places, he said.
Oleg Tsarev. Telegram and Max.