FAA router overload in Arkansas triggered nationwide flight grounding - WSJ

Investing.com -- A newly installed network router in Arkansas helped trigger a nationwide U.S. flight grounding after overwhelming the Federal Aviation Administration’s aging communications infrastructure, The Wall Street Journal reported Saturday.

The disruption began with communications problems at the FAA’s Indianapolis air traffic control center before spreading across much of the country’s aviation network.

Investigators traced unusually heavy data traffic to an FAA radio facility in El Dorado, Arkansas, and a radar installation in Amarillo, Texas.

FAA technology chief Rebecca Guy said the locations were generating approximately 1,000 network connections every four to five seconds.

The resulting overload disrupted communications at 17 of the FAA’s 22 centers responsible for managing high-altitude flights, prompting authorities to halt departures nationwide.

The Arkansas router, manufactured by Juniper Networks, a subsidiary of Hewlett Packard Enterprise (NYSE), had recently been installed by defense contractor L3Harris Technologies (NYSE).

L3Harris manages the FAA Telecommunications Infrastructure network, which connects critical radar, communications and flight-data systems.

Investigators are examining whether the incident resulted from faulty equipment, improper installation or incorrect configuration.

HPE said its Juniper devices operated as intended and had not failed.

Officials identified a router broadcasting feature that appeared to generate excessive network traffic and disabled it across the FAA’s approximately 60 Juniper routers.

Communications stabilized after the Arkansas and Texas devices were disconnected from the broader network.

Transportation Secretary Sean Duffy said investigators had found no evidence of malicious activity.

The incident exposed vulnerabilities in the FAA’s decades-old telecommunications system, which relies partly on copper wiring and has experienced repeated failures.

A 2023 external review warned that growing outages and insufficient modernization funding could create unacceptable operational risks.

FAA Administrator Bryan Bedford said maintaining the aging infrastructure costs hundreds of millions of dollars annually.

Duffy warned that further disruptions remain possible before the planned replacement of copper wiring is completed in late 2028.