A Fokker 100 crashes shortly after taking off in Brazil. TAM Flight 402 has an autothrottle failure during the takeoff roll. The pilots on board take the correct actions against this and continue with their takeoff. Shortly after lifting off the runway, the throttle for one of the engines reduces to idle. The crew fights against this but the throttle keeps falling back to idle. Quickly the pilots lose control of the plane and it crashes into the ground. What was wrong with the throttles on board this aircraft? Find out on this episode of Black Box Down.