The flight recordings indicate that a wounded man, believed to be Dahl, was moaning in the cockpit. The man pleaded, "No more," or "No," repeatedly, as the hijackers shouted for him to sit down and to stop touching something. Sandy believes that Dahl took actions to interfere with the hijackers, including possibly disengaging the autopilot, and rerouting the plane's radio frequency so that Jarrah's attempts to communicate with the passengers were instead transmitted to air traffic controllers.