Philadelphia/ Transportation & Infrastructure

Newark, Philly, Teterboro Flights Halted as Radio Outage Hits Key Radar Hub

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Published on September 21, 2026
Newark, Philly, Teterboro Flights Halted as Radio Outage Hits Key Radar HubSource: Famartin / Wikimedia Commons

Flights bound for Newark Liberty International, Philadelphia International, and Teterboro airports ground to a halt Monday morning after a radio frequency outage knocked out communications at the radar facility that guides planes into all three airports. The Federal Aviation Administration ordered ground stops across the trio of East Coast airports.

The outage struck Philadelphia TRACON, the Terminal Radar Approach Control facility responsible for guiding aircraft into and out of Philadelphia International, Newark Liberty International, and Teterboro, according to an FAA statement reported by CBS New York. NBC News reported on the disruption, according to a report from NBC News.

Ground stops affected flights bound for Philadelphia and Newark on Monday morning.

Uncertainty Over When Flights Would Resume

Ground stops are used to hold planes at their origin airports rather than let them circle or divert once congestion builds at the destination, the station's report notes.

A Single Point of Failure Rooted in a 2024 Airspace Shift

Newark controllers were relocated to Philadelphia, and Philadelphia TRACON directs traffic for Philadelphia and Newark.

A radio-related equipment outage affected Philadelphia TRACON in September.

New Radar Gear Installed, But Vulnerabilities Persist

Aviation Week reported that a new surface movement radar system was installed at Newark Liberty to replace older radar equipment.

Aviation Week described the Newark installation as part of a broader effort to modernize the nation's air traffic control system.

Staffing Shortages Compound Equipment Failures

The FAA faced a nationwide shortage of roughly 3,000 air traffic controllers.

Newark's capacity constraints add another layer of pressure. Per an FAA slot-administration document cited in Hoodline's August coverage of nationwide flight delays, Newark Liberty operates under capacity limits capped at a maximum of 72 scheduled flight operations per hour through the summer 2026 scheduling season.