FAA Halts All US Flights Over ATC Comm Failure
Original: FAA Grounds All US Flights Until Further Notice
Why This Matters
Rare nationwide ground stops expose deep fragility in aging US ATC infrastructure.
The FAA grounded all US flights Friday citing a nationwide communications failure across Air Traffic Control Centers, including Boston, Chicago, and New York. Flights airborne may land; no new departures permitted.
The Federal Aviation Administration issued a nationwide ground stop Friday afternoon, citing 'extraordinary circumstances and for reasons of safety.' Transportation Secretary Sean Duffy confirmed on X that the halt stems from a radio frequency outage hitting multiple major Air Traffic Control Centers. Airports including San Francisco International were already dealing with weather delays when the ATC failure compounded the disruption, leaving travelers in long lines scrambling for answers.
Nationwide ground stops are historically rare — the last comparable events were 9/11 and a January 2023 NOTAM system failure. Duffy had written to congressional leaders earlier Friday requesting $30.1 billion to modernize ATC infrastructure. Susan Hotle, a Virginia Tech transportation engineering professor and former FAA staffer, noted the fragility exposed: 'Right now all it takes is for one system to go out, and it affects a wide region at once.'
Michael McCormick, a former air traffic controller now at Embry-Riddle Aeronautical University, warned that an extended stoppage would leave 'airline systems in complete chaos, with aircraft and crews in the wrong places' — with recovery potentially taking days. The FAA this week also announced a new AI advisory tool for controllers, now deployed nationally, though the agency says there is no evidence linking it to Friday's outage.