Construction workers accidentally cut backup fiber line, grounding hundreds of flights across US Northeast airports

From the Newshound archive · first published 21 September 2026 · last updated 22 September 2026.

A primary circuit failure at Philadelphia TRACON was compounded when construction workers severed a backup fiber optic line between New Brunswick and Newark, crippling air traffic control across the entire US Northeast. FAA administrator Brian Bedford warned the fiber break alone would take around 13 hours to repair, calling it "massive." Ground stops spread from Newark, Philadelphia and Teterboro to JFK, LaGuardia and Boston Logan, hitting over 600 flights — roughly 20% of schedules — with Newark delays stretching beyond three and a half hours.

The chaos struck just as foreign leaders were flying into New York for the UN General Assembly, though Trump's flight from Washington left on schedule.

Philadelphia TRACON is the SAME facility that caused repeated Newark outages in spring 2025, raising fresh questions about why critical infrastructure remained so vulnerable.

Some flights were resuming by early afternoon, but the primary circuit that failed was already earmarked for replacement under a $12.5bn air traffic control overhaul approved by Congress last year.