The Federal Aviation Administration (FAA) ordered a nationwide ground stop on Friday, halting all departures from U.S. Airports for more than four hours. Nearly 10,000 flights were canceled through Saturday. The disruption left over a million travelers stranded at airports across the country.
Transportation Secretary Sean Duffy cited overloaded routers in a decades-old communications network as the cause of the outage. He ruled out a cyberattack and confirmed no link to the Microsoft outage. Officials described the issue as a result of routine maintenance work replacing outdated copper wiring with fiber optic lines at a remote FAA facility.
Duffy emphasized that the situation was not due to a major modernization effort but rather a routine upgrade. He stated his agency would hold people accountable for the incident. The ground stop was the longest nationwide FAA disruption since 9/11.
The FAA’s communication system, which has been in use for decades, faced unexpected technical challenges during the maintenance work. The outage caused significant delays and chaos at major airports. Officials have not yet identified the exact cause of the router overload.
This incident highlights the vulnerability of aging infrastructure in critical systems. The FAA is now reviewing its maintenance procedures and communication protocols to prevent similar disruptions in the future.
