Growing crowds at Newark Liberty International Airport - Terminal B

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Airlines have begun posting updates about the nationwide ground stop.

United Airlines said, "Flights that are already airborne will continue. New domestic flights will not depart while the ground stop remains in place."

Meanwhile, American Airlines said, "We expect disruption to our schedule for the rest of the day," depending on the duration of the FAA's nationwide ground stop.

Gov. Kathy Hochul released the following statement on the nationwide ground stop of all flights:

U.S. Sen. Kirsten Gillibrand (D-NY) released the following statement on the Federal Aviation Administration’s (FAA) nationwide ground stop of all departing flights:

Homeland Security secretary says currently no indication of an attack (AP) - “There was no indication as of yet this was a nefarious attack against us,” said U.S. Secretary of Homeland Security Markwayne Mullin.

All flights in the air are accounted for, he said during a news conference, adding that the public has no reason to be afraid.

The FAA’s ground stop order runs through at least 11 p.m. ET Friday.

The FAA released the following statement on X:

Via FAA:

"There has been a temporary telecommunications outage - out of an abundance of caution all flights have been halted. Every flight has been accounted for and international flights will be handled on a case by case basis."

WASHINGTON (AP) — The Federal Aviation Administration grounded all flights nationwide Friday afternoon because of communications problems at regional air traffic control centers.

The FAA notice said the ground stop was being imposed “due to extraordinary circumstances and for reasons of safety.”

Transportation Secretary Sean Duffy said there is a communications issue affecting the 22 regional air traffic control centers that direct planes en route between airports nationwide. He said FAA technicians are investigating. This is the first nationwide ground stop since January 2023, when a key FAA computer system malfunctioned. Before that the last time had been after the Sept. 11, 2001, attacks.

The government has been working to overhaul the outdated technology that air traffic controllers rely on since Congress approved $12.5 billion for the project last year. Miles of old copper wires have been replaced with fiber optic lines and old radio systems are gradually being replaced at airports across the country.

But much work remains. Duffy has said that another $30 billion will be needed to complete the work, and the White House has begun lobbying Congress to approve it.

The problem appeared similar to a regional air traffic control communication outage in September that snarled hundreds of flights across the Northeast, aviation safety expert Steve Arroyo said, except this time on a nationwide scale. It may be linked to the outdated technology used by air traffic controllers.

“If you don’t have that ability, whether it’s because the old wires that they have are just run down or for whatever reason, you’ve got to stop airplanes on the ground,” said Arroyo, who is a former United Airlines pilot. “And not put them in the air where you’re going to risk not being able to communicate with them.”

Friday’s ground stop was different than the one after Sept. 11 because planes were not being told to land immediately and pilots likely were able to communicate with ground controllers at airports, Arroyo said.

Via Secretary Duffy:

"The @FAAnews issued a nationwide ground stop for all U.S. airports following a communication issue impacting all Air Route Traffic Control Centers. FAA technicians are investigating the issue. We will provide immediate updates as we have them."

(AP) - The Federal Aviation Administration grounded all flights nationwide Friday afternoon because of communications problems at regional air traffic control centers. The FAA notice said the ground stop was being imposed “due to extraordinary circumstances and for reasons of safety.”

Transportation Secretary Sean Duffy said there is a communications issue affecting the 22 regional air traffic control centers that direct planes en route between airports nationwide. He said FAA technicians are investigating. This is the first nationwide ground stop since January 2023, when a key FAA computer system malfunctioned. Before that, the last time had been after the Sept. 11, 2001 terrorist attacks.

The government has been working to overhaul the outdated technology that air traffic controllers rely on since Congress approved $12.5 billion for the project last year. Miles of old copper wires have been replaced with fiber optic lines and old radio systems are gradually being replaced at airports across the country.

But much work remains. Duffy has said that another $30 billion will be needed to complete the work, and the White House has begun lobbying Congress to approve it.