A pair of black boxes has been recovered from the American Airlines jet involved in a mid-air collision with a military helicopter, which left no survivors.

In the immediate aftermath of the crash of American Airlines Flight 5342 , which was a service from Wichita (ICT) to Washington National (DCA) with 60 passengers and four crew members onboard, grainy CCTV footage of the incident emerged.

The midair collision Wednesday night between a regional American Airlines passenger jet and a Black Hawk military helicopter over the Potomac River near Washington, D.C., was "absolutely" preventable,