An FAA equipment outage on September 21, 2026, disrupted flight operations at Newark Liberty International, John F. Kennedy International, and LaGuardia airports. The incident began around 9:45 a.m. when an Amtrak construction crew working on the Delco Lead project between New Brunswick and North Brunswick, New Jersey, severed a Verizon fiber-optic backup cable. This cable was a critical backup to a primary circuit that had already failed, with the combined faults causing the equipment disruption.
Flights to and from Newark, JFK, and LaGuardia experienced ground stops and delays throughout the day. The delays affected inbound flights from over a dozen
U.S. and Canadian regions including Chicago, Atlanta, Boston, Cleveland, Miami, Toronto, and Montreal. Some flights already airborne were diverted to alternate airports, notably Boston Logan Airport, which confirmed receiving “a lot of diversions from impacted airports.” While Newark Liberty is no longer under a ground delay, ground stops at JFK and LaGuardia are scheduled to remain until 10:59 p.m. and 9:59 p.m., respectively.
Official Statements on Cause and Repairs
FAA Administrator Bryan Bedford stated the primary circuit failure at the Philadelphia TRACON and the severing of the backup fiber-optic line between New Brunswick and Newark caused the outage. Transportation Secretary Sean Duffy confirmed that the damaged
telecom lines on NJ Transit property have been repaired but noted that flight delays will persist through the evening. NJ Transit acknowledged the construction crew’s accidental severing of the fiber-optic backup cable, adding that preliminary information shows the crew was operating approximately 10 feet from utility markings. NJ Transit staff remain on site to assess repair status and to determine responsibility between Verizon and the contractor for the utility markings.
Boston Logan Airport reiterated its status as a diversion site receiving significant rerouted flights affected by the outage.
Ongoing Flight Delays and Traveler Impact
The equipment outage led to hundreds of cancellations and delays, grounding flights
and imposing ground stops at the three major New York area airports. Despite repairs to the severed cable, air traffic control infrastructure vulnerabilities resulted in continued delays even after flights resumed. These delays are expected to extend through the scheduled ground delay expirations tonight at JFK and LaGuardia, impacting passengers traveling to and from these airports throughout the day. Travelers who had flights destined for the affected airports faced cancellations or diversions, with flights from Canada and multiple U.S. cities included in the disruptions.
Wider Air Traffic Implications
The simultaneous failure of the FAA’s primary circuit and backup fiber-optic line during ongoing railroad construction
exposed weak points in the telecommunications infrastructure supporting critical air traffic control functions. The disruptions at Newark, JFK, and LaGuardia had a ripple effect across the U.S. air traffic network, resulting in flight diversions and regional air traffic delays, including from Philadelphia TRACON. The incident underscores the interdependence of transport infrastructure and the effects of outages at major hub airports on national air traffic flow.
