FAA nationwide ground stop after communications outage at regional air traffic centres

The Federal Aviation Administration halted all US flights on Friday afternoon after communications problems hit regional air traffic control centres. The FAA said the nationwide ground stop was ordered for safety under extraordinary circumstances. Officials said the disruption affected systems that guide aircraft between airports across the country, and crews began checks to find the cause.

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Transportation Secretary Sean Duffy said a communications issue affected all 22 regional air traffic control centres. Sean Duffy said FAA technicians were investigating the fault. There was no stated schedule for when flights could resume. Officials said the outage involved centres that manage en route traffic, rather than only airport towers.

FAA ground stop and the communications issue

Secretary of Homeland Security Markwayne Mullin said there was no sign of hostile action. "There was no indication yet that this was a nefarious attack against us. Its just a telecommunications outage. Everybodys safe. Theres no reason to be concerned about your loved ones if theyre flying,\" Mullin said. Officials still gave no timeline for restarting flights.

Mullin said investigators would check for any connection to the FAA’s nationwide rollout of a new artificial intelligence system. The tool is meant to spot problems and help reroute planes. Officials said the system runs from one site near Washington, D.C. It only sends recommendations to the air traffic control centres.

FAA ground stop compared with earlier nationwide disruptions

This was the first nationwide ground stop since January 2023, when a key FAA computer system failed. Before that, the last time was after the September 11, 2001, attacks. Aviation safety expert Steve Arroyo said Friday’s event looked like a September regional outage. Steve Arroyo said this time the impact was nationwide.

Steve Arroyo said the communications failure could relate to ageing technology in use. \"If you dont have that ability, whether its because the old wires that they have are just run down or for whatever reason, youve got to stop aeroplanes on the ground,\" said Arroyo, who is a former United Airlines pilot. \"And not put them in the air where youre going to risk not being able to communicate with them.\"

Arroyo said Friday’s ground stop differed from the one after September 11. Planes were not ordered to land right away, Arroyo said. Arroyo added that pilots likely could still talk with controllers at airports. The wider issue was with the network guiding aircraft between airports.

FAA ground stop and the technology overhaul funding

The US government has been upgrading air traffic control technology after years of concern. Congress approved USD 12.5 billion last year for the overhaul. Officials said miles of old copper wires were replaced with fibre optic lines. They also said older radio systems were being replaced at airports across the country.

Officials said major work still remained despite earlier upgrades. Duffy has said another USD 30 billion would be needed to finish the modernisation. The White House has started lobbying Congress to approve that funding. The Friday outage highlighted how faults can still disrupt the system during the transition.

FAA technicians continued investigating the communications breakdown affecting the 22 regional centres. Officials repeated that there was no timeline for restarting flights. They also said investigators would review links to older infrastructure and the newer AI rollout. Until the cause is confirmed and systems stabilise, flight operations remained paused nationwide.

With inputs from PTI