The crew of the Army Black Hawk helicopter involved in the deadly collision with a jetliner had thousands of hours of flight ...

For many, the Sikorsky UH-60 Black Hawk helicopter, like the one involved in the Wednesday collision over the Potomac River ...

The helicopter collided with passenger plane carrying 64 people and crew, crashing into the Potomar River late on Wednesday ...

An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.

The Black Hawk helicopter was on an annual proficiency training flight when it collided with an American Airlines jet.

It's not unusual for a military helicopter to fly near a commercial airfield, a former Cobra pilot told ABC11.

A source told NBC News that the staffing at Reagan National Airport last night was "not normal" for that amount of traffic ...