The American Airlines flight involved in the deadly collision with a Black Hawk helicopter over Washington, DC, seemed to increase its pitch just before the impact, preliminary data from a voice data recorder recovered from the plane shows.

Transportation safety investigators are seeking to determine if the pilots of the American Airlines plane detected danger just before the midair crash with a helicopter.

An American Airlines regional passenger jet and a U.S. Army Black Hawk helicopter crashed into the Potomac River after a mid-air collision near Reagan Washington National Airport on Wednesday night, officials said. Below are the details of the aircraft involved:

The female pilot killed in the helicopter collision with a passenger jet in Washington DC will not be named, the US Army said.

In the deadliest U.S. major commercial aviation incident in 16 years, there were no survivors in a collision between a commercial aircraft and an Army helicopter by Ronald Reagan National Airport near Washington D.