A FAA facility in Leesburg, Virginia was evacuated due to fumes from a nearby construction site.
Around 6:30 p.m. Monday, flights were grounded at the Baltimore/Washington International Thurgood Marshall Airport. The Ronald Reagan National Airport and Dulles International Airport both were in ground stop, as well. Flights were halted for about three hours, but operations were not expected to return to normal until Tuesday morning, according to the Federal Aviation Administration.
BWI officials have confirmed that flights resumed around 9:30 p.m. Some issues may last throughout the night and in the morning.
The fumes penetrated into the Washington Center’s control room, which is responsible for handling high-altitude flights for the entire region. After the air traffic controllers were evacuated, the airborne flights were designated to other air traffic control facilities.
According to FlightAware website, 181 flights were delayed and 87 flights were canceled.