This video is purported to be of the Boeing 747-400BCF, registered N949CA, of National Air Cargo that crashed after takeoff from Bagram Air Force base in Afghanistan on 29 April.
During climb out the nose of the aircraft appears to pitch up sharply, before enters into a stall and coming down near the airport perimeter fence. Reports indicate that listeners on the frequency are reported to have heard the flight crew report a load shift had caused the stall. The aircraft was carrying a crew of seven or eight people, although the this remains unconfirmed.
Orlando based National Air Cargo operated three B747-400BCF aircraft, and is a member of a group of airlines participating in the civil reserve air fleet programme, which transports cargo on behalf of the US Air Mobility Command.