On 9 February 2014, the Captain of a military variant of the Airbus A330 suddenly lost control during the cruise on a passenger flight. A violent, initially negative 'g', pitch down occurred which reached 15800 fpm as the speed rose to Mach 0.9. In the absence of any effective crew intervention, recovery was achieved entirely by the aircraft Flight Envelope Protection System. The Investigation found that the upset had occurred when the Captain moved his seat forward causing its left arm rest to contact the personal camera he had placed behind the sidestick, forcing the latter fully forward.