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Story summary
- On March 13, 2026, the Federal Aviation Administration (FAA) issued a ground stop for Ronald Reagan Washington National Airport, Washington Dulles International Airport, and Baltimore-Washington International Airport after a chemical smell.
- The stop began around 5:30 p.m. ET and lasted two hours, delaying many flights.
- The FAA confirmed the smell affected air traffic controllers.
- By 8 p.m., the ground stop was lifted, but delays persisted nationwide, with 7,000 delays reported.
