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Flights resume across America, but passengers face days of potential delays and cancellations. (Img: X)
Washington: The United States has lifted a nationwide aviation ground stop after an hours-long communications failure disrupted thousands of flights, stranded passengers and exposed serious weaknesses in the country's air traffic control infrastructure. Although flights have resumed, the Trump administration has warned that operational disruptions could continue for several days as airlines struggle to restore normal schedules.
The Federal Aviation Administration (FAA) imposed the ground stop on Friday, following technical problems affecting radar and communication systems used to manage aircraft movements. According to FlightRadar24, the disruption initially resulted in more than 6,600 flight cancellations and approximately 8,600 delays. FlightAware reported over 7,700 cancellations and more than 8,000 delays in a separate update.
Transportation Secretary Sean Duffy attributed the incident to outdated air traffic control infrastructure, including ageing network switches, routers and telecommunications connections. He indicated that legacy technology had become overloaded, contributing to intermittent communication failures and radar gaps that affected the ability of air traffic controllers to communicate reliably with pilots.
Homeland Security Secretary Markwayne Mullin suggested that the installation of new equipment and technology had overwhelmed older systems. The administration ruled out evidence of a cyberattack, malicious interference or a connection with the recent Microsoft outage. Officials also said there was no indication of a national security threat. Mullin confirmed that more than 3,000 flights had landed safely during the disruption.
The crisis has intensified scrutiny of America's ageing aviation infrastructure. A 2024 Government Accountability Office assessment classified 51 of the FAA's 138 air traffic control systems as unsustainable and another 54 as potentially unsustainable. The FAA operates more than 300 air traffic facilities, several of which continue to depend on decades-old computing and telecommunications equipment.
Duffy had formally requested USD 30.1 billion from Congress on November 12 to upgrade and modernise the national air traffic control system. Following the disruption, he renewed his appeal for funding, warning that further problems could occur without substantial investment.
Although departures gradually resumed on Friday evening, airlines warned that normal operations could take days to restore. Thousands of aircraft and crew members were left out of position, creating complications involving flight scheduling, aircraft repositioning and crew availability. FlightAware reported more than 2,000 additional cancellations for Saturday.
The disruption also affected NBA, NHL and college sports teams travelling for scheduled events. Cargo operators faced delays, with FedEx preparing contingency arrangements to minimise logistical disruption. US airlines transport approximately 61,000 tons of goods daily to and from more than 220 countries, according to industry group Airlines for America.
The timing of the aviation crisis has raised concerns ahead of the Thanksgiving holiday season, one of America's busiest travel periods. Officials have expressed confidence that the system will recover before the holiday rush, although the immediate backlog remains substantial.
The latest incident follows earlier aviation disruptions, including a September communications outage in the northeastern United States linked to a damaged fibre-optic cable and previous radar problems at Newark Airport. Transportation Secretary Duffy also confirmed that President Donald Trump was closely monitoring the situation.
