US aviation operations resume following hardware failure ground stop

United States aviation authorities have fully reopened domestic airspace following Friday's nationwide ground stop, which grounded flights for over four hours. Transportation Secretary Sean Duffy clarified that the widespread air traffic control communications failure was caused by aging hardware rather than a cyberattack or software outage. Flight tracking data indicated that more than 11,000 flights were delayed or cancelled during the disruption, creating significant congestion across major transit hubs.

Although air traffic management facilities have restored system functionality, officials warned that operational delays will persist for several days as airlines work through backlogs. Aviation authorities reiterated that safety protocols were maintained throughout the incident, confirming no security breaches occurred during the outage.

Sources: BBC News, Cyprus Mail, France24, STV News, The Guardian