What could have been a major disaster was averted with just seconds to spare at a busy U.S. airport.
The chair of the NTSB expressed concern over the possibility of a mid-air collision at the Burbank Airport.
The air traffic controller who was managing numerous aircraft around Reagan National Airport felt a "little overwhelmed" just a few minutes before an American Airlines jet collided midair with an Army helicopter near Washington D.C., an investigator said.
In the newly released dispatch calls, eyewitnesses can be heard describing the moments after the crash.
Questions remain as the NTSB investigates the deadly plane crash that killed former NASCAR driver Greg Biffle and his family