Internal government reports and public databases highlight several instances in which planes narrowly escaped collisions with each other or helicopters.

The arrivals board at the reopened Reagan National Airport is showing dozens of canceled flights that were scheduled for Friday, with the majority scrapped by American Airlines. That includes early-morning journeys from Charleston,

""DCA is one of the most demanding airports in the world. It also has what’s known as ‘helicopter alley’ with hundreds of police, military, news and rescue helicopters criss-crossing the Potomac River,

A small aircraft is down in the Potomac River near Ronald Reagan Washington National Airport and fireboats were on the scene, the Washington fire department said. The airport said late on Wednesday that all takeoffs and landings were halted at the airport as emergency personnel responded to an aircraft incident.

Hearing that just one air traffic controller was monitoring both planes and helicopters has left many to wonder how common such a situation is.

Authorities are investigating an apparent crash involving a regional jetliner and a helicopter

Questions remain over the mid-air collision between a jet, which was carrying 64 people, including the crew, and a military helicopter carrying three soldiers

A jet with 60 passengers and four crew members aboard has collided with an Army helicopter while landing at Ronald Reagan National Airport near Washington.

A full ground stop that halted all air traffic at Ronald Reagan Washington National Airport Friday has been lifted, but delays are because of weather will continue through midnight, officials said.

The F.A.A. restricted helicopter routes nearby in the aftermath of the Wednesday collision. For some officials, the concerns about clogged airspace were a long time coming.

Daniel Driscoll, President Trump’s pick for Army secretary, said during his Thursday confirmation hearing that the service may not want to risk training around an airport as busy as Ronald Reagan Washington National Airport.