Why Did the FAA Order a Nationwide Ground Stop?
Because a communication issue hit the air traffic control centers that guide planes across the country, and the Federal Aviation Administration decided no departing flight was safe to send up until it knew more. At 3:54 p.m. Eastern on Friday, November 13, the FAA's Air Traffic Control System Command Center issued Advisory 111, titled "National Ground Stop": every airport in the United States was ground stopped, all departing traffic was ordered to remain on the ground until further notice, and flights already in the air were allowed to land. Inbound international flights are being handled case by case. The underlying cause of the failure has not been confirmed.
The plain reality is that the whole system runs on controllers being able to talk to pilots. The record shows how old that system is: Congress approved $12.5 billion last year to fix the FAA's aging communications, and on Friday morning — hours before the stop — the FAA and the White House asked Congress for another $30.1 billion to modernise airports and air traffic control, a request we reported earlier today. Reality showed the other side of that record on Friday afternoon, when the communications failed at center after center at the same time.
What the officials in the story claim is narrower than the rumours. The FAA's own advisory gives no technical reason at all — it says only "extraordinary circumstances and for reasons of safety." Transportation Secretary Sean Duffy said the stop followed "a communication issue impacting all Air Route Traffic Control Centers," and that technicians are investigating. The Washington Examiner, citing unnamed FAA employees, reported a "rolling frequency outage" — a claim the FAA has not confirmed, and no official has said a cyberattack is suspected.
"Due to extraordinary circumstances and for reasons of safety. Attention all aircraft operators, by order of the Federal Aviation Command Center all airports are ground stopped. All departing traffic should remain ground stopped until further notice."
The common-sense principle is plain: a plane controllers cannot reliably talk to is a plane that does not take off. When the failure is at one airport, you stop that airport. When it reaches the centers that hand flights to each other across the whole country, the only safe order left is the one the FAA gave — everything stays on the ground.
The consequence is already moving. Flightradar24 counted about 3,100 aircraft airborne and bound for U.S. airports at 4:19 p.m. Eastern, with no new aircraft taking off. The advisory runs through 11 p.m. Eastern, and even when departures resume, planes and crews will be out of place, so delays and cancellations will run into the weekend. And it leaves the question that follows from it: if the radio and communications system that guides every flight in America can fail nationwide on the same afternoon, what guarantees it does not happen again on a busier one?
The details that matter are these. Trouble showed first in Chicago: flights bound for O'Hare were stopped from 3:10 p.m. Eastern under Advisory 107, citing an "equipment / outage" and "comms issues," with a matching stop at Midway, and the Weather Channel reported problems beginning around 3:30 p.m. at the Kansas City center before spreading. American Airlines told its customers at 4:24 p.m. that "the FAA is working to resolve a technical issue affecting telecommunications at many air traffic control facilities across the country." This is only the second nationwide stop of all departures since the September 11, 2001 attacks — the other was in January 2023, when the FAA's Notice to Air Missions system failed, departures paused for under two hours, and the day still ended with more than 10,000 delays and over 1,300 cancellations. As of Friday evening the FAA had given no confirmed cause and no official word that departures had fully resumed; its public status page dropping the nationwide listing is not the same as the agency lifting the order.
Duffy closed his statement with the promise travellers are now waiting on: "FAA technicians are investigating the issue. We will provide immediate updates as we have them."