A router malfunction during telecommunications upgrades disrupted the US air traffic control network, triggering a nationwide flight halt. Transportation Secretary Sean Duffy said investigators were examining contractor error and equipment failure, while authorities ruled out a suspected cyberattack preliminarily
Air India advised passengers to check flight status and plan airport journeys amid widespread disruption at US airports following an FAA ground stop linked to communications outages. Although departures resumed at locations, airlines warned that cancellations and delays could continue
