New York Governor Hochul Calls for Transportation Secretary Duffy's Resignation After Nationwide FAA Ground Stop
Why It MattersA single maintenance step on a contractor-managed telecom link halting the entire U.S. airspace shows how concentrated air traffic infrastructure dependencies are, and ground stops reach private and general aviation alongside airlines.
What happened
New York Governor Kathy Hochul, a Democrat, wrote on X that Transportation Secretary Sean Duffy must resign or be removed by President Trump after a nationwide FAA ground stop on Friday that canceled thousands of flights. She also called for a congressional investigation. More than 3,500 aircraft were in the air when the stop was issued, and the FAA had not ordered them to land.
The FAA first detected unstable and inconsistent radar and communications data at air traffic facilities at about 3:36 p.m. and imposed the nationwide ground stop at about 3:54 p.m. It was the third nationwide ground stop in modern FAA history, after the September 11, 2001 attacks and a January 2023 failure of the Notice to Air Missions system, and the longest since 9/11.
Duffy said investigators are focusing on routine maintenance at at least one remote FAA site, where personnel working on the L3Harris Technologies-managed telecommunications network were moving service from an aging copper line to fiber. A router involved in the transition began flooding other network routers, generating more than 1,000 connection attempts every four to five seconds. Officials isolated the affected system and the network recovered. Investigators have not determined whether human error, improper configuration or faulty equipment was to blame.
Duffy said the FAA returned to full operations by Saturday. FlightAware data cited by news organizations showed roughly 9,100 U.S.-linked cancellations and more than 7,000 delays on Friday. On Saturday FlightAware reported 3,803 cancellations and 2,145 delays involving U.S. flights.
Bedford said about 50,000 flights were scheduled Friday; roughly 30,000 had been completed or were airborne when the stop began, about 8,000 of the remaining 20,000 were recovered, and about 12,000 (roughly 9,000 commercial and 3,000 private or general aviation) could not be.
Industry impact & what to watch
The sequence described here, a routine copper-to-fiber migration at a remote site spreading into a nationwide halt, shows how much of U.S. airspace depends on a small number of shared network links. A failure that begins in telecommunications infrastructure rather than in radar or controller staffing can still remove every aircraft from service at once, because the FAA's response to unreliable surveillance and communications data is to stop departures everywhere.
The impact was not limited to scheduled airlines. About 3,000 of the roughly 12,000 flights that could not be recovered were private or general aviation, so charter and fractional operators, FBOs and their customers carry the same exposure to a ground stop as the airlines do. For that segment, a stop of this length means missed trips and displaced aircraft positioning, with recovery tied to the airline-dominated restart queue.
The cause is still open: investigators have not determined whether human error, improper configuration or faulty equipment was responsible, and the performance of the L3Harris-managed network is part of what Duffy said is being examined. Hochul's call for a congressional investigation puts that question into a political forum, so the findings from the FAA review and any congressional action are the next points that will settle how responsibility is assigned.
