On 29 April 2013, the Boeing 747-400 operating the flight crashed within the perimeter of the Bagram airfield moments after taking off, killing all seven people on board.
This rendered the aircraft stuck in an uncontrollable pitch-up attitude and induced a stall, and made recovery by the pilots impossible.
[1] Flight 102 had originated in Camp Bastion, where it had been loaded with five heavy armoured vehicles, and had stopped at Bagram Airfield to refuel.
[citation needed] The United States National Transportation Safety Board (NTSB) and the Afghanistan Civil Aviation Authority investigated the accident.
[6] The NTSB reported in a 30 April 2013 press release that representatives of the Federal Aviation Administration and the Boeing Company would also provide technical expertise and aid in the investigation.
[17] On 2 June 2013, investigators from the Ministry of Transport and Civil Aviation of Afghanistan confirmed the load shift hypothesis as the starting point: the cargo of five mine resistant ambush protected vehicles (three Cougars and two Oshkosh M-ATV's), totaling 80 tons of weight, had not been properly secured.
[9]: 51–52 In the process it crippled key hydraulic systems and severely damaged the horizontal stabilizer mechanism, including breaking its jackscrew, rendering the airplane uncontrollable[3][9] and resulting in the abnormal pitch-up rotation, stall, and eventual crash.