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The longest halt of flight departures to U.S. airports since September 11 occurred following updates to an older communication system managed by L3Harris Technologies, Transportation Secretary Sean Duffy stated on Saturday. A remote router overloaded other components of the network, forcing the Federal Aviation Administration to implement a nationwide ground stop on Friday.
System Investigation and Recovery
Federal Aviation Administration head Bryan Bedford reported at a press conference that there was zero evidence pointing to nefarious activity or any connection to artificial intelligence. Bedford explained that while no facilities went dark, officials chose to ground flights due to data feed instability.
Following the incident, the FAA stated that they thoroughly tested their systems to guarantee stability and reliable operations before clearing flights to resume.
Flight Disruptions and Airline Responses
Flight disruptions persisted into Saturday, with FlightAware data showing more than 3,700 U.S. flights canceled and nearly 2,000 delayed as of 9:40 a.m. ET. These figures followed approximately 9,000 cancellations and over 7,000 delays on Friday, though some of those disruptions stemmed from adverse weather conditions.
Airlines operated a light schedule on Saturday, deploying spare planes and crews to reposition travelers and employees ahead of the Thanksgiving holiday period. Cirium data indicated that around 3 million people were scheduled to fly on Saturday.
American Airlines offered flight attendants extra pay to pick up trips, as noted by an individual familiar with internal plans. Meanwhile, Delta Air Lines provided flight crews with confirmed seats on flights to reach their designated positions, according to a company message reviewed by US Top News and Analysis (cnbc.com). Major carriers, including American, confirmed they would waive fees and fare differences for customers whose travel plans were disrupted.
Infrastructure Concerns and Sports Impact
Transportation Secretary Sean Duffy criticized the nation’s outdated infrastructure during a Friday news conference, emphasizing that Congress must approve additional funding to modernize air traffic control. The United States operates the busiest airspace globally, and the event marked only the second nationwide ground stop issued by the FAA since the 2001 terrorist attacks, with Trump administration officials confirming no indication of a cyberattack.
The disruption also affected sports schedules, leaving NBA, NHL, and college teams struggling to reach game destinations. Duffy noted that college football teams on charter flights could receive priority scheduling by contacting the FAA. Consequently, the Southeastern Conference announced via X that some games were rescheduled to Sunday, while the National Football League assigned three backup referees within driving distance for Sunday games.
