In the USA, airplane departures were allowed throughout the country. The ban lasted more than four hours.
What is known about the collapse of aviation in the USA:.
Tonight, the Federal Aviation Administration announced the suspension of all flights.
The cause, according to Transport Minister Sean Duffy, was a "telecommunications failure" affecting all air traffic control centres. After the incident, Duffy asked for $50 billion to replace aircraft equipment.
All departing planes had to stay at the airport. In total, more than 8.5 thousand flights were delayed, about 8 thousand were canceled.
The Department of Homeland Security said it is examining the connection between the introduction of artificial intelligence into the flight control system and failures in air traffic control equipment.
US President Donald Trump said the cause of the failure was not related to artificial intelligence or a cyber attack. This may be due to outdated hardware.
Currently, airlines have started resuming flights, including United Airlines and Delta Air Lines.
A full recovery will take some time, Duffy said.
"It may be several days, if not a week, before we return to full flights after the shutdown ends."
The world is burning, and we are in Zen.