The FAA statement did not say whether any fire was found in the tower — just that “a fire alarm was activated in the air traffic control tower.” But the agency said the tower was fully operational again as of noon.
Reagan airport was the site of the nation's deadliest plane crash since 2001 when an Army helicopter collided with an American Airlines jet in the skies over the capital and killed all 67 people aboard both aircraft.
That crash, combined with a series of other crashes and close calls since then, have stoked fears about the safety of air travel.