Air France Flight 447 sent out 24 automated error messages -- including one saying the aircraft's autopilot had disengaged -- before it vanished with 228 people on board, aviation investigators said Saturday. But even as they analyzed the error messages and satellite images of the doomed flight's path, investigators said they still have a lot of work to determine what caused the plane to go down. "I would just like to ask you to bear in mind that all of this is dynamic and there are a lot of question marks," Paul-Louis Arslanian, head of France's accident investigation bureau told reporters. "We don't know how the aircraft entered the water. We don't know how these pieces of debris entered into the water and that you have to take into account the current ... and the shape of the ocean floor." The error messages suggest that the plane may have been flying too fast or too slow through the stormy weather it encountered before the crash, officials were quoted as saying by Associated Press. In addition, investigators have said the plane's autopilot disengaged, cabin pressure was lost and there was an electrical failure before the disaster.
