A Boeing 767 suddenly crashes into the Atlantic Ocean. EgyptAir Flight 990 has recently taken off from New York when crew members switch their rest shifts ahead of schedule. The captain leaves the cockpit for a moment leaving the first officer alone at the controls. Suddenly the airplane starts nose diving violently. The captain returns to the cockpit to try to recover the plane but is unsuccesful. Was this crash truly an accident? Find out on this episode of Black Box Down.