US aviation authority grounds domestic flights following system outage

A four-hour nationwide ground stop caused mass flight delays and cancellations across US airports following an air traffic control communication failure.
The Federal Aviation Administration briefly ordered a nationwide ground stop for all domestic flights across the United States following a severe failure in air traffic control communication systems. The four-hour suspension led to thousands of flight delays and hundreds of cancellations, leaving passengers stranded at major transport hubs across the country.
US officials ruled out terrorism and cyberattacks, attributing the breakdown to technical glitches within communication networks between control centres. Former President Donald Trump criticized the incident, blaming the nation's aging aviation infrastructure. Operations have since resumed, though airlines continue to manage extensive scheduling backlogs and congested airport facilities.
Sources: ANSA, La Repubblica, Corriere della Sera, Il Messaggero
Sources
- La Repubblica — Usa, traffico aereo bloccato in tutto il Paese: oltre 10mila voli rinviati e 1700 cancellati
- Corriere della Sera — Fermi per quattro ore tutti gli aerei degli Stati Uniti per motivi di sicurezza. «Problemi con i sistemi di controllo, ma non è un attacco hacker»
- ANSA — Revocato il blocco dei voli negli Stati Uniti, 'decine di migliaia di passeggeri bloccati'
- Il Messaggero — Voli Usa cancellati, attesa e confusione negli scali: passeggeri disorientati. «Non c?è spazio per gli atterraggi»