The air traffic controller on duty at the time of the deadly passenger plane-Black Hawk helicopter crash in Washington, DC, was doing the work of two people, the Federal Aviation Administration said.

Federal authorities are asking questions as to how the collision between an American Airlines flight and a military helicopter could have occurred.

One air traffic controller was reportedly working two tower positions at the time of Wednesday's fatal crash near D.C.

Staffing was 'not normal' in air traffic control tower at time of midair collision, FAA report obtained by AP says. Got a question? Put a reporter on it. Ever think of a question that you wish someone would answer?

The Federal Aviation Administration (FAA) has confirmed the air traffic controller working was doing the job of two people.