Technical Issues at Air Traffic Control Center Disrupt Flights in Northeast

Hundreds of flights were canceled in the U.S. Northeast due to technical problems at a key regional air traffic control center, affecting major airports in the New York City area for several hours on Monday. The primary communications line failed at a Federal Aviation Administration (FAA) facility in Philadelphia, and the backup fiber optic line was inadvertently severed by railroad construction workers, leaving controllers without radar or communications. The outage impacted flights to and from Kennedy, LaGuardia, Newark, and Philadelphia airports. By Monday evening, flights were resuming at all those airports, but significant delays were expected throughout the day. Some airlines allowed customers to change flights without charge, and the FAA advised travelers to check flight statuses before heading to the airport. The outage coincided with President Donald Trump and numerous foreign leaders arriving in New York City for the United Nations General Assembly. The technical issues originated from the same FAA facility in Philadelphia that caused disruptions at Newark Liberty International Airport in the spring of 2025. Regional control centers have two lines for radar and communications data: a primary and a backup. The FAA reported that a circuit on the primary line failed Monday morning, and when the system attempted to switch to the backup, workers found that the fiber optic line had been cut. Transportation Secretary Sean Duffy attributed the issue to an Amtrak construction crew, while Amtrak pointed to a New Jersey Transit construction crew working in the area between Newark and New Brunswick, New Jersey. FAA administrator Bryan Bedford stated that the agency was working to restore the primary connection by installing a new circuit on the primary line and repairing the backup fiber optic line, although the timeline for completion was unclear. Verizon technicians are also working to restore service. Bedford indicated that the fiber break could take approximately 13 hours to repair. The primary circuit that failed is scheduled for replacement as part of an overhaul of the nation's air traffic control system. Additionally, the FAA began testing a new computer system using AI to predict schedule conflicts and weather issues to assist air traffic controllers in rerouting traffic, although this system is currently being tested only in the Washington, D.C., area and was not linked to the outages.