Toxic scare grounds flights across Washington region

Washington — Flights at major airports serving the U.S. capital region were briefly halted on Friday after federal authorities reported a strong chemical odor at a key air traffic control facility, disrupting operations across multiple states.

The Federal Aviation Administration (FAA) ordered a temporary ground stop at Ronald Reagan Washington National Airport, Washington Dulles International Airport, Baltimore-Washington International Airport, Charlottesville–Albemarle Airport and Richmond International Airport after reports of the odor at the Potomac Terminal Radar Approach Control (TRACON) facility, which manages aircraft movements in the region.

FAA spokeswoman Kristen Alsop said air traffic controllers had begun returning to their positions and that flight operations were expected to normalize shortly after the halt.

Baltimore-Washington International Airport said on social media that the ground stop had been lifted but warned of lingering delays into the evening.The disruption prompted New York City Emergency Management to advise travelers of significant delays for flights bound for the Washington area.

“Travelers to the DC area should expect possible ground holds, departure delays, and cancellations, and check directly with your airline before heading to the airport,” the agency said.The incident marks the second such disruption this month linked to a chemical smell at the Potomac TRACON facility.

A previous ground stop, lasting about an hour, was traced to a circuit issue, according to U.S. Transportation Secretary Sean Duffy.

In that case, operations resumed after emergency responders confirmed there was no risk to personnel or air traffic control systems.