A rare nationwide ground stop was issued Friday by the Federal Aviation Administration (FAA), grounding all departures across the United States. The agency cited a critical communication failure affecting all Air Route Traffic Control Centers, which oversee flight paths at altitudes above 18,000 feet. There are 22 of those centers in the U.S.
Transportation Secretary Sean Duffy stated via social media that the directive was implemented due to extraordinary circumstances necessitated by safety concerns. FAA technicians are currently working to isolate and resolve the technical disruption. It’s just a telecommunications outage as of now,” he told reporters. According to FAA technicians are investigating the issue,” he, In an X post. According to microsoft apologizes for email disruption,, AI agents not responsible.
Department of Homeland Security Secretary Markwayne Mullin addressed the situation during a press briefing, confirming that all passengers are safe. He explicitly stated, “This isn’t another 9/11,” and assured the public there is currently no indication of a nefarious attack. I cannot repeat that enough,” he added.
While the root cause remains under investigation, officials are considering all potential scenarios. When questioned about the possibility of a cyber attack, Mullin noted that while one must assume such possibilities in the current digital landscape, no evidence exists to suggest that is the case at this moment. You always got to assume that, as many cyber attacks that take place, that you make that assumption,” Mullin said. “But as of right now, that’s not known, as we investigate what caused this.
The scale of the disruption is significant, with data from Flightradar24 indicating that approximately 3,100 aircraft were already in the air bound for U.S. airports when the order was issued. Flights currently in progress are being diverted, and no new departures are permitted. 8 dead, including 2 children, after building collapses in Brooklyn. No additional aircraft are taking off at this time.
Industry experts emphasize that the aviation system is designed for such contingencies. John Nance, an aviation contributor, explained that pilots are well-trained to handle these emergencies, maintaining established flight plans and coordinating with air traffic controllers as they prepare for arrival. Baby buried alive for 24 hours released from the hospital; father charged.
This event marks only the second nationwide ground stop ordered by the FAA since the September 11, 2001, terrorist attacks. The most recent occurrence was in 2023, which was triggered by a failure in the agency’s NOTAM system that prevented pilots from accessing mandatory pre-departure paperwork. When the FAA NOTAM system went down and pilots could not get their pre-departure paperwork, the last time was in 2023.
International partners are also monitoring the situation. NAV Canada confirmed that it is keeping a close watch on the FAA’s actions and noted that its own systems remain unaffected, adding that they are prepared to support the safe movement of any aircraft diverted from U.S. airspace.
Prior to the national directive, the FAA had already initiated ground stops at Chicago’s O’Hare and Midway airports following equipment outages at those specific facilities. Officials indicate that the investigation into the broader communications failure is ongoing. ‘ Victoria Beaule contributed to this report.
