A Boeing 747 crashes immediately after taking off. Korean Air Cargo Flight 8509 takes off from London after some frustrating delays. The captain is angry and worried about a piece of equipment on board that appears to not be working properly. Immediately after takeoff the flight engineer tries to get the captain's attention about their bank angle but soon after the airplane crashes into the ground. What series of events led to this crash? Find out on this episode of Black Box Down.