Chuck Smith says he has made that approach and landing hundreds of times in his career. He shared a video showing what it looks like to fly near Washington, D.C., and over the Potomac River. He says the airspace is notoriously busy with commercial,

""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,

There is at least one casualty after a helicopter is believed to have crashed with a plane above a major airport tonight. All runways have been shutdown and all departures and landings have been halted at the DCA Ronald Reagan Washington National Airport,