Nationwide Flight Ground Stop Hits Denver After Air Traffic Control Comm Glitch
The FAA halted all U.S. flights Friday afternoon after a communications failure at 22 regional centers, marking the first such stop since 2023.
By Martin Reynolds ·
Travelers across Denver and the rest of the United States faced a full stop to air travel on Friday afternoon. The Federal Aviation Administration issued a nationwide ground stop, keeping planes on the tarmac until further notice. This action followed a report of communications problems at regional air traffic control centers.
The FAA stated the halt was necessary due to extraordinary circumstances and safety concerns. Transportation Secretary Sean Duffy confirmed that the issue affects the 22 regional centers responsible for directing planes between airports. FAA technicians are currently investigating the failure. This is the first time the entire country has been grounded since January 2023, when a major computer system malfunctioned.
Prior to 2023, the last nationwide ground stop occurred after the September 11, 2001, attacks. The current incident marks a significant pause in the ongoing modernization of the air traffic system. Congress approved $12.5 billion last year to overhaul the outdated technology used by controllers. Since then, miles of old copper wiring have been replaced with fiber optic lines, and legacy radio systems are being phased out at airports nationwide.
Despite these upgrades, Duffy has indicated that an additional $30 billion is required to complete the transition. The White House has begun lobbying Congress for this funding. Aviation safety expert Steve Arroyo, a former United Airlines pilot, noted the similarity between this event and a regional outage in September. That previous incident snarled hundreds of flights across the Northeast, but this current failure is on a nationwide scale.
Arroyo explained that the outdated technology may be a factor in the disruption. He said, "If you don’t have that ability, whether it’s because the old wires that they have are just run down or for whatever reason, you’ve got to stop airplanes on the ground." He added that keeping planes grounded prevents the risk of losing communication with aircraft in the air.
Arroyo distinguished Friday’s stop from the 2001 event by noting that pilots were not ordered to land immediately. He said pilots likely maintained communication with ground controllers at their home airports. The FAA has not yet announced when the ground stop will be lifted or how long the delay is expected to last.
