A regional American Airlines passenger jet and a Black Hawk military helicopter collided over Washington, D.C., on Wednesday night in the nation's first major commercial airline crash since 2009. There are confirmed fatalities from the collision,

The Black Hawk is a US Army workhorse helicopter. It has been flying for decades. One tragically collided with a passenger jet this week.

More questions are emerging about the Army Black Hawk helicopter involved in a fatal collision above the Potomac River in Washington, D.C. CBS News' Elle Watson reports.