The explanation came hours later. According to Duffy, radar and communication systems at the control centers became overloaded with data and began showing inconsistencies, until the old equipment simply stopped working. He stressed that the failure occurred in decades-old legacy technology and not in the new systems the government is bringing into the network. Homeland Security chief Markwayne Mullin said there was no evidence of a cyberattack and that everything pointed to a mechanical failure, although he acknowledged that the investigation remains open and that nothing can be completely ruled out.
At 8:15 p.m. Eastern time, the airspace reopened. The return to normal, however, was slow. Duffy himself warned that it would take time to untangle what had happened during the afternoon, and events proved him right. According to flight tracking data, more than 10,000 flights into, out of or within the United States were delayed over the course of Friday, on top of numerous cancellations.
Newark airport, in the New York metropolitan area, was among the hardest hit. Delays and cancellations there continued well into the night, and the first departure after the reopening did not take off until after nine, a United flight bound for Edinburgh. JetBlue chose to cancel all of its operations for the day except departures to Europe from New York and Boston. Terminals filled with passengers searching for hotels or alternatives by road.
The episode has few precedents. Only twice before in the country's recent history had a suspension of this scale been ordered. The first came after the September 11, 2001 attacks. The second was in January 2023, when a failure in the pilot alert system forced a halt to all departures for several hours. That a third has come just three years later shows how much pressure the US air traffic control infrastructure is under.
This is not a new concern. In recent times, the system has accumulated equipment failures, communication outages and a persistent shortage of controllers. Last year Congress approved 12.5 billion dollars to modernize the network, and on that same Friday the FAA and the White House asked lawmakers for an additional 30.1 billion. The day of chaos strengthens the case of those calling for that overhaul to be accelerated.
For tourism, the consequences go beyond a lost afternoon. The United States is an essential hub for international connections, and a disruption of this magnitude spreads quickly to Europe, Latin America and Asia, affecting connections, stays and bookings. Travelers' confidence rests on the certainty that the system works, and every failure of this kind puts it to the test. The challenge now is to ensure that the technology guiding the skies lives up to the millions of people who depend on it every day.
