The NTSB found Know that the probable cause Causation of the accident Catastrophe was the airplane 's departure Departing from normal cruise flight and subsequent impact Influence with the Atlantic Ocean as a result of the relief Cure first officer 's flight control Control inputs .

While the NTSB 's report Reporting stated Statement the impact Influence was `` a result of the relief Cure first officer 's flight control Control inputs '' , the report Reporting did not determine Deciding a specific reason Protest for the relief Cure first officer 's alleged actions .

Its investigation concluded Coming_to_believe that the crash was the result of deliberate flight control Control inputs , most likely by the captain .

2 engine failed to respond Response to throttle inputs .