Fiber cut and circuit failure snarl Northeast flights

A failed telecommunications circuit at the Philadelphia TRACON air traffic control facility, combined with a severed backup fiber line in New Jersey, forced the Federal Aviation Administration to halt incoming flights at major Northeast airports on Monday, September 21, 2026, snarling thousands of flights across the country. Transportation Secretary Sean Duffy said an Amtrak construction crew accidentally cut a Verizon fiber line in New Jersey, triggering a telecommunications outage that prompted the FAA to pause flights across the region. FAA Administrator Bryan Bedford said the primary communications circuit at Philadelphia TRACON failed and that when controllers attempted to switch to the backup, they discovered the fiber line had been broken. The FAA imposed ground stops and delays at Newark Liberty, John F. Kennedy, LaGuardia, Philadelphia, Boston Logan, Teterboro and other airports, with restrictions evolving throughout the day. FlightAware data cited in reporting showed more than 5,600 US flights delayed or canceled, including roughly 1,200 to 1,400 at New York-area airports, and more than 100 diversions.