The flight recordings revealed that Captain Jason Dahl and First Officer LeRoy Homer survived the initial attack and were still alive after the hijackers took over the plane. Dahl and Homer took actions to interfere with the hijackers, including disengaging the autopilot just before the hijackers took over in order to prevent them from setting the plane's target coordinates for Washington, ., and switching the output of the pilots' microphones from the cabin address speakers to the radio transmitter so that Jarrah's attempts to communicate with the passengers would instead be heard by air traffic controllers.  Dahl "stayed in the cockpit alone with the hijacker-pilot, injured but not dead",  while Homer was "knocked unconscious and dragged from the cockpit". 
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