The Federal Aviation Administration (FAA) remains unable to determine the root cause of the nationwide flight ground stop that began on November 13, 2026. During a press conference on Saturday, FAA Administrator Bryan Bedford stated that the disruption involved routers and networking equipment, but no definitive cause has been identified. The FAA took precautionary measures to ground flights due to concerns over potential sensor connectivity issues with aircraft.
Transportation Secretary Sean Duffy emphasized the challenges posed by outdated infrastructure, noting that the FAA is reliant on L3Harris Technologies for its current network. Duffy also called for a $50 billion overhaul of air travel systems, separate from the FAA's $12.5 billion modernization efforts. Bedford clarified that routine router updates, such as replacing Cisco 600 routers with Juniper routers, are standard procedures and not part of the broader modernization plan.
L3Harris Technologies released a statement on X, acknowledging its role in the airspace communications conversion from legacy copper wires to a fiber-optic system. The company expressed its support for the FAA's investigation into the ground stop and its impact on travelers and airlines. The disruption has highlighted the critical need for updated and reliable aviation infrastructure.