US officials have confirmed that recent nationwide flight disruptions were caused by outdated equipment overloading, not a Microsoft-related issue or cyber-attack. The situation, described as the longest such ground stop since 9/11, affected multiple airports across the country.

The Federal Aviation Administration (FAA) stated that the cause was related to the aging infrastructure at several air traffic control facilities. These systems, some of which date back decades, were unable to handle the increased volume of air traffic. As a result, flight operations were temporarily halted to prevent further complications.

This incident follows years of calls for modernizing the US air traffic control system. In 2023, the FAA announced a $10 billion plan to upgrade its technology, but progress has been slow. The current disruption highlights the ongoing challenges of maintaining a reliable and efficient aviation network.

The FAA is now reviewing the incident to determine if additional measures are needed to prevent similar occurrences. While no immediate safety risks were identified, the event has raised concerns about the reliability of critical infrastructure.