The Federal Aviation Administration (FAA) has attributed Friday's nationwide ground stop to an equipment issue that occurred during a telecoms network upgrade. According to Transportation Secretary Sean Duffy, the issue arose when a contractor, L3Harris, was updating an old FAA telecommunication line, changing copper wire to fiber. The routers in these facilities were manufactured in 2001, and Duffy stated that the updates have been happening in American institutions for decades.
The ground stop, which lasted for about four hours on Friday, resulted in thousands of flights being grounded, with nearly 25,000 flights delayed and over 9,000 cancelled, according to FlightAware. The disruption continued into Saturday morning, with over 4,000 cancellations recorded, accounting for 14% of flights departing the US. Duffy blamed "old switches, old routers" for the failures, and Homeland Security Secretary Markwayne Mullin confirmed that there was no evidence of an attack or cyber-related issue.
The FAA is still investigating the exact error that caused the issue, with Duffy stating that it was unclear whether it was due to user error, installer error from L3Harris, or a faulty router. Bryan Bedford, the FAA administrator, emphasized that there was no evidence of anything nefarious happening. The aviation system is slowly returning to normal, but delays and cancellations are expected to continue, with airlines aiming to have full schedule integrity by Sunday.
Passengers were severely affected by the ground stop, with many stranded at airports across the country. At Tampa International Airport in Florida, people were seen sleeping in chairs, while at Ronald Reagan Washington National Airport in DC, flight boards showed dozens of flights delayed or cancelled. Passengers Erin and Jake Britt spent half the day at the airport in DC, only to have their flight to Fort Lauderdale cancelled, and they eventually decided to cancel their weekend trip.
The disruption caused significant stress for people with events or plans over the weekend. Joe Romano and Maddie Cabana had a cruise leaving Orlando, Florida, and were forced to quickly book another flight on Southwest Airlines to make it on time. Others, like Suze DiPietro, decided to abandon flying and opted for alternative transportation, with her husband driving down from New Jersey to pick her up.
This was only the second nationwide ground stop since September 11, 2001. The US last issued a ground stop of this scale in 2023, when all US airports were shut down due to an outage in the NOTAM system, which alerts pilots and airports of real-time hazards. The FAA has recently begun rolling out an AI-enhanced software tool known as the SMART system as part of its overhaul of the nation's air traffic control system.
The FAA is working to determine the cause of the equipment issue and prevent similar disruptions in the future. The agency is investigating whether the issue was due to incompetence or a faulty router. L3Harris did not immediately respond to a request for comment. The incident highlights the need for continued investment in the nation's air traffic control system to prevent such disruptions.
Key points
- The FAA ground stop caused thousands of flight delays and cancellations due to an equipment issue during a telecoms network upgrade.
- The disruption was caused by an error that occurred while a contractor was updating an old FAA telecommunication line.
- The incident highlights the need for continued investment in the nation's air traffic control system to prevent such disruptions.
