In short:
Thousands of flights have been delayed or cancelled across the US after a backup fibre cable in New Jersey was accidentally cut, causing a telecom outage.
asserted
cable → delay → outage
The disruption came as world leaders were arriving in New York for the annual United Nations General Assembly meeting.
asserted
leaders → come → meeting
The incident highlights the fragility of the aging US air traffic control system, for which Congress has approved billions of dollars in funding.
asserted
Congress → highlight → funding
A failed telecommunications circuit and a severed fibre-optic cable have snarled thousands of flights across the US and halted incoming flights at major airports in New York, Boston and Philadelphia.
asserted
circuit → fail → York
The flights were halted on the day that 130 world leaders and dozens of ministers were arriving in New York for the annual high-level meeting of the United Nations General Assembly.
asserted
leaders → halt → Assembly
The Federal Aviation Administration (FAA) halted incoming traffic on Monday, local time, at busy US East Coast airports and, at one point, stopped incoming flights at all three major New York-area airports, as well as Philadelphia, Boston, and two smaller airports in the New York area.
FlightAware, a flight-tracking website, said more than 5,600 flights were delayed or cancelled, including 1,200 flights at the three New York-area airports.
The issue also forced more than 100 flights to divert to other airports.
asserted
issue → halt → airports
Transportation Secretary Sean Duffy said an Amtrak construction crew accidentally cut a fibre line in New Jersey, causing a telecom outage and forcing the FAA to pause flights in the north-east.
asserted
crew → say → east
He said flights were resuming at New York LaGuardia but remained paused at Newark and New Jersey's Teterboro Airport.
asserted
flights → say → Newark
All arriving flights were again halted in Philadelphia after a ground stop was briefly lifted.
asserted
stop → arrive → Philadelphia
Reagan Washington National Airport also halted flights for more than an hour because of volume issues.
asserted
Airport → halt → issues
FAA Administrator Bryan Bedford said a replacement circuit failed at Philadelphia Terminal Radar Approach Control, which provided primary communications for the centre.
asserted
which → say → centre
The FAA also lifted a ground stop at Boston, which had stopped accepting flights because of spillover volume.
asserted
which → lift → volume
The FAA will not restart the system for incoming flights at the affected airports "until we make sure the airspace is safe," Mr Bedford said.
asserted
Bedford → restart → airports
The loss of communications was tied to a failed circuit at a Philadelphia air traffic control facility that handles air traffic for the airports, he said.
asserted
he → tie → airports
Authorities then discovered that a construction crew in New Jersey accidentally cut a backup fibre line.
asserted
crew → discover → line
"When it went to flip into the backup, we discovered that the backup fibre had a break, and that fibre break is probably 13 hours to repair,"he said.
asserted
break → go → break
"It's massive, I'm told.
asserted
I → tell → ?
Meanwhile, we've got the new circuit ready to install now.
asserted
circuit → get → ?
Verizon said its fibre cable running adjacent to an Amtrak rail line in New Jersey was cut, and its facilities were fully functional until then.
asserted
facilities → say → Jersey
The company said it was working to repair the damaged cable and restore connectivity as quickly as possible.
asserted
it → say → connectivity
In May 2025, the Philadelphia facility that guides air traffic in and out of Newark Airport suffered a series of significant communications outages.
uncertain
that → guide → outages
The FAA said a telecommunications outage last year impacted communications and radar displays at Philadelphia TRACON.
asserted
outage → say → TRACON
Last year, Congress approved $US12.5 billion ($17.5 billion) to address the aging air traffic control system and boost controller hiring following complaints over airport congestion, flight delays, and technology issues in recent years.
asserted
Congress → approve → years
Mr Duffy said Congress needed to approve another $US17.5 billion to finish the job, saying "this is unacceptable in America".
asserted
this → say → America
The Aporia
