On 29 April 2013, a Boeing 747-400 freighter departed controlled flight and impacted terrain shortly after taking off from Bagram and was destroyed by the impact and post crash fire and all occupants were killed. The Investigation found that a sudden and significant load shift had occurred soon after take off which damaged hydraulic systems Nos. 1 and 2 and the horizontal stabilizer drive mechanism components as well as moving the centre of gravity aft and out of the allowable flight envelope. The Load shift was attributed to the ineffective securing techniques employed.