FAA blames system overload for ground stop

Air traffic control systems across the United States experienced a major failure Friday, forcing a nationwide ground stop that lasted five hours. The pause ended in the evening, allowing limited domestic departures to resume. This marks the first time the Federal Aviation Administration has halted all U.S. flights since January 2023. It is the second such event since the aftermath of the 2001 attacks.

Officials stated that new equipment introduced into the air traffic control network overloaded older, antiquated components. This conflict created intermittent gaps in communications and radar. Secretary of Homeland Security Markwayne Mullin told reporters at the White House that the issue was mechanically driven. He noted there were no footprints indicating a cyberattack. Secretary of Transportation Sean Duffy agreed, stating the problem stemmed from legacy equipment rather than the agency’s new AI-powered prediction system.

The disruption affected thousands of flights and potentially over a million travelers. At the peak of the stoppage, more than 3,500 airplanes were in the sky. Duffy confirmed that over 3,000 flights landed safely, and no one was in danger. According to Cirium, an aviation analytics firm, at least 827 flights were diverted by 7:05 p.m. EST. Of those, 670 returned to their origin airports, while 157 redirected to other locations. Flights were sent to hubs including Washington Dulles, Los Angeles International, and Nashville International airports.

Duffy placed part of the blame on Congress for failing to approve additional funding for technology upgrades. He argued that inaction increased the risk of such failures. The FAA began a major overhaul last year after Congress approved $12.5 billion in funding. This budget has already funded the replacement of thousands of copper wires with fiber optic lines and the upgrade of hundreds of radio systems. The White House is now pushing for an additional $30 billion to complete the work.

Travelers at major hubs faced uncertainty and delays. At Chicago O’Hare, passengers learned of the stoppage by watching delay screens. Amber McQuilkin, a 27-year-old software engineer from Seattle, considered driving to New York for the League of Legends world finals but decided to stay on the flight. In Los Angeles, Ruth Coles remained on a plane five hours after landing from Newark. She reported waiting for a gate while the pilot claimed they were next in line.

The outage also impacted professional and collegiate sports teams. NBA, NHL, and college teams were stranded while attempting to reach their destinations. Duffy stated that NCAA teams would be prioritized for Saturday football games. He encouraged football teams to contact the FAA directly to schedule their flight times to ensure they make kickoff. NFL teams also faced uncertainty regarding their travel for weekend games.

Cargo operations suffered delays as well. FedEx, the largest cargo airline, said it prepared contingency plans to minimize disruptions. U.S. airlines typically move about 61,000 tons of goods to and from more than 220 countries daily, according to Airlines for America. Aviation safety expert Steve Arroyo, a former United Airlines pilot, noted that the nationwide scale forced controllers to stop planes from taking off. He explained that without reliable communication, planes could not safely remain in the air.

Airlines expect to recover fully within days, though planes and crews remain out of position. Duffy said the system should be normal in time for the Thanksgiving travel rush. However, he warned that more disruptions might occur as the agency reboots and reviews the system. He acknowledged that while the outage was unexpected, the infrastructure is vulnerable to similar issues in the future.