A reported “strong smell” at a key air traffic control center disrupted flights Friday evening at major airports across the Washington, D.C., region for the second time in two weeks.

The Federal Aviation Administration (FAA) temporarily halted flights at Ronald Reagan Washington National Airport (DCA), Washington Dulles International Airport (IAD), Baltimore/Washington International Airport (BWI), Charlottesville–Albemarle Airport (CHO) and Richmond International Airport (RIC), the agency told FOX Business in an email.

The FAA said the disruptions were due to a “strong smell” at the Potomac Terminal Radar Approach Control (TRACON) center, which manages airspace in the region.

GROUND STOP LIFTED AT MAJOR DC-AREA AIRPORTS AFTER CHEMICAL ODOR DISRUPTS AIR TRAFFIC CONTROL

It was not immediately clear what caused the smell.

Ground stops at Dulles, Reagan National and BWI remained in effect until around 8 p.m. ET before being lifted, according to the FAA’s website.

NEWARK AIR TRAFFIC CONTROLLERS LOST RADAR, RADIO COMMUNICATIONS WITH PLANES FOR OVER A MINUTE, SPARKING CHAOS

As of 8:30 p.m., Reagan National was experiencing ground delays, while BWI continued to see departure delays.

Earlier this month, a ground stop was similarly issued at several airports in the Washington, D.C., region after a chemical odor was detected at the TRACON center.

FATAL LAGUARDIA COLLISION RENEWS FOCUS ON RUNWAY INCURSION RISKS ACROSS US

GET FOX BUSINESS ON THE GO BY CLICKING HERE

The temporary ground stop March 13 similarly affected DCA, IAD, BWI and RIC, Transportation Secretary Sean Duffy said at the time.

Duffy said the smell came from an overheated circuit board, which has since been replaced.

WASHINGTON – D.C. residents got on their first Metro train 50 years ago on March 27, 1976. Here’s a look back at the beginning. 

Connecticut Avenue; NW; looking south. evening traffic-jams are aggravated by metro subway construction in Washington D.C. ca. 1973 (Photo by: HUM Images/Universal Images Group via Getty Images)

View of the Metro Center subway station (at 13th and G Streets NW) during its construction, Washington DC, November 16, 1973. (Photo by Warren K Leffler/PhotoQuest/Getty Images)

Standing in the cavernous tunnel, planners wearing hard hats discuss the construction progress of the Metro Center subway station at the intersection of 13th and G Streets in Washington, DC, November 16, 1973. (Photo by Leffler/Library of Congress/In

Advertisement

WASHINGTON, DC – NOVEMBER 07: FILE, Metro construction miners and blasters on a jumbo drill outside the hole they are working on at Rock Creek Parkway and Cathedral Ave NW in Washington, DC on November 7, 1973. (Photo by James K.W Atherton/The Washin

WASHINGTON, DC – MARCH 4: FILE, View of the Post Office at North Capital and Mass Avenue NE, and 1st NE where subway tunnels were being constructed in Washington, DC on March 4, 1974. (Photo by Joe Heiberger/The Washington Post via Getty Images)

Advertisement

WASHINGTON, DC – AUGUST 29: FILE, Workers rig a pipe at the entrance to the Rosslyn Metro Station in Washington DC on August 29, 1974 (Photo by Larry Morris/The Washington Post via Getty Images)

WASHINGTON, DC – MARCH 27: FILE, The crowd at Rhode Island Station on opening day of the Washington Metro on March 27, 1976. (Photo by James A. Parcell/The Washington Post via Getty Images)

WASHINGTON, DC – MARCH 28: FILE, Reverend Leslie E. Smith of the Episcopal Church, right, and George Docherty of New York Avenue Presbyterian church hold a joint service at the new Metro Center station in Washington, DC on March 28, 1976. (Photo by D

WASHINGTON, DC – JULY 1: FILE, An aerial view of metro construction where it crosses the Washington Channel. The Potomac River, the Pentagon and Northern Virginia can be seen in the distance. (Photo by Ken Feil/The Washington Post via Getty Images)

WASHINGTON, DC – JANUARY 27: FILE, A packed train of commuters on the Silver Spring metro on the Red Line on January 27, 1987. (Photo by Dudley M. Brooks/The Washington Post via Getty Images)

WASHINGTON, DC – JULY 4: FILE, Thousands of people press their way into the Smithsonian Subway station after the Independence Day fireworks in Washington, DC on July 4, 1979. (Photo by Lucian Perkins/The Washington Post via Getty Images)

Among the liquor store, barber shop and dry cleaners at the Watergate Complex’s retail plaza, there is a new pop-up museum dedicated to the scene of the crime that toppled Richard Nixon’s presidency.

The temporary exhibit features the work of artist Laurie Munn — portraits of members of the Nixon administration and those connected to the Watergate break-in. The exhibit features members of Congress, the media and some who were on Nixon’s enemies list.

Keith Krom, chair of the Board of Directors of the Watergate Museum, told WTOP the exhibit was first featured in the gallery in 2012 for the 40th anniversary of the break-in at the Democratic National Committee.

“When she (Munn) learned about our museum effort, she offered to reassemble them as a way for us to expand awareness of the museum,” Krom said.

Krom, who lives in the Watergate, said his favorite portrait is of one of the special prosecutors, whose firing sparked the “Saturday Night Massacre” in 1973.

“I had the pleasure of being a student of Archibald Cox,” Krom said. “He served as my mentor for my third-year writing project.”

Krom said during this time, at the Boston University School of Law, he spent a great deal of time with him.

“I didn’t realize how much he must have gone through. Here he was, this one man, who was challenging the president of the United States over something pretty serious,” Krom said.

The pop-up opened in October and was recently extended to stay open until April 25. Krom said the hope is to find it a permanent location within the Watergate Complex, where they can “present the history of Watergate, but with two perspectives.”

The first would be on the building’s “architectural significance to D.C.,” he said.

“You may not like the design, you actually may hate it,” Krom said. “But you cannot deny that it changed D.C.’s skyline.”

The secondary focus would, of course, be on the mother of all presidential scandals that changed the course of American history.

“That’s where that suffix ‘-gate’ started and continues to be used for almost every scandal that comes out today,” Krom said.

The inspiration for the museum spawned from an interaction from a tourist outside the Watergate.

“He says, ‘This is the Watergate, right?’ And I was like, ‘Yeah, it’s one of the buildings,’” Krom recalled.

The tourist then asked Krom, “So where’s the museum?”

“I was like, ‘Oh, we don’t have a museum.’ And he literally just looked at me and said, ‘That’s so sad.’ And he got on his bike and rode away,” Krom said.

While the self-proclaimed political history nerd said he “still gets goose bumps” when he drives by the Capitol at night, Krom hopes that when people leave the museum, “they’ll walk away with a new appreciation for how our government works, the guardrails that are in place.”

“Maybe an understanding that those guardrails themselves are kind of frail, and they probably need our collective help in making sure they last — that’s what we hope to accomplish,” Krom said.

Get breaking news and daily headlines delivered to your email inbox by signing up here.

© 2026 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.