
AI-generated summary
The article mentioned that the last nationwide grounding in the United States occurred on January 11, 2023. The reason was a failure of the NOTAM system, which affected the crew's ability to obtain flight safety information such as runway closures and temporary airspace restrictions. The grounding lasted less than 2 hours.
The Federal Aviation Administration (FAA) issued a nationwide ground grounding on Friday afternoon, citing "special circumstances" and flight safety considerations. Affected by this nationwide grounding, nearly 7,000 flights have been delayed or cancelled.
According to comprehensive media reports, citing special circumstances and flight safety considerations, the FAA issued a nationwide ground grounding order on the afternoon of the 13th local time. Flights across the United States that have not yet taken off must stay at the departure airport. As for aircraft already in the air, they can land. International flights to the United States will be handled on a case-by-case basis.
Foreign media reports pointed out that before the FAA issued the order, air traffic control communication abnormalities had been reported in the Chicago area, and some flights were required to stay at their departure points. However, the FAA has not confirmed it yet. U.S. Transportation Secretary Sean Duffy revealed that the communication failure affected all route air traffic control centers and technicians are investigating the cause of the failure. The latest progress will be announced in a timely manner.
This is also the second time the United States has implemented a nationwide grounding order since the "911" terrorist attacks in 2001. The last time was on January 11, 2023, when the NOTAM system failed, which affected the crew's ability to obtain flight safety information such as runway closures and temporary airspace restrictions. The grounding lasted less than 2 hours.
AI outlook — possibilities, not facts
The FAA will release the cause of the failure and a timetable for lifting the grounding after the investigation is completed.
Very likely · Within hours
The Federal Aviation Administration (FAA) has ordered the suspension of flights from all U.S. airports until further notice due to communication failures at several Air Traffic Control Centers. As of 17:30 p.m. local time, there have been 9,917 delays and 953 cancellations on domestic and outbound flights in the United States.

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