FAA grounds all US flights Friday due to radio issues
The Federal Aviation Administration grounded all flights across the United States on Friday afternoon because of communication problems affecting air traffic control centers.

Nationwide ground stop issued
The agency stated the halt occurred due to extraordinary circumstances and safety reasons. Flights already in the air were permitted to land while new takeoffs were forbidden. Transportation Secretary Sean Duffy posted on X that the issue involved radio frequency outages. These outages affected critical centers located in Boston, Chicago, and New York.
Controllers rely on specific frequencies
Pilots receive messages from air traffic controllers on specific radio bands while these specialists oversee airspace safety. The FAA recently rolled out a text-based communication system alongside traditional voice communications. An FAA spokesperson declined to provide additional details when reached for comment. This nationwide stop is rare, with the last one happening on September 11, 2001.
Funding request and recovery time
Secretary Duffy asked lawmakers to act swiftly on a request for $30.1 billion in funding updates. Professor Michael McCormick warned that an extended stop would cause chaos requiring days to recover. Airlines face significant disruption if the outage lasts more than a couple of hours. The FAA also noted there is no link to a new AI tool.
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