US lifts nationwide flight ground stop after 4 hours of air traffic control outage, confirms no cyberattack

What happened: The FAA lifted a nationwide ground stop on departing US flights after a telecommunications outage affected air traffic control. Officials said there was no indication of a cyberattack or other deliberate act. Why it matters: The FAA warned that operations would take time to return to normal, and passengers were advised to check flight status before travelling to the airport.

The FAA lifted a nationwide ground stop on departing US flights after a telecommunications outage affected air traffic control. Officials said there was no indication of a cyberattack or other deliberate act.

The FAA warned that operations would take time to return to normal, and passengers were advised to check flight status before travelling to the airport.