Duffy: Investigators examining 2 routers after nationwide FAA ground stop, no signs of foreign cyberattack
Transportation Secretary Sean Duffy said Sunday that two routers from FAA facilities in Texas and Arkansas are undergoing extensive testing as investigators examine whether faulty equipment or an installation problem triggered the nation's longest nationwide ground stop in 25 years.Appearing on "Fox News Sunday," Duffy said that investigators have found no indication of a foreign cyberattack, although the FBI and other federal law enforcement partners remain involved in the probe."We think it was the installation or the router that was the bad actor," Duffy said."But we're open, if we see something else, we're gonna continue to investigate with our federal partners and law enforcement."FAA SAYS AIR TRAVEL SHOULD BE BACK TO NORMAL SUNDAY AFTER NATIONWIDE GROUND STOPTransportation Secretary Sean Duffy, right, with Federal Aviation Administrator Bryan Bedford, left, speaks during a news conference at the U.S.
Department of Transportation, Saturday, Nov.14, 2026, in Washington.
(AP Photo/Tom Brenner)In an update posted on X, Duffy said contractor L3Harris had secured the two routers from remote FAA facilities in Texas and Arkansas and was conducting "deep diagnostics testing" at its headquarters in Florida, with engineers from the FAA, Juniper and Cisco assisting.The investigation follows Friday's nationwide ground stop, which halted air traffic for more than four hours and contributed to disruptions affecting roughly 15,000 flights Friday and Saturday.The fallout continued Sunday, with 3,798 flights delayed and another 1,638 canceled within, into or out of the United States as of noon ET, according to flight-tracking website FlightAware.Among the hardest-hit airports according to the provided data were Atlanta's Hartsfield-Jackson International Airport, with 376 delays, and Dallas Fort Worth International Airport, with 363 delays and 195 cancellations.The shutdown occurred as L3Harris was replacing aging copper wiring with fiber-optic technology in the FAA's communi...