matches with the ear witness and i m witness accounts of perhaps the pilot putting in more power to attempt to do a take off again and go around, which would explain the debris tail from a tail strike, those eyewitness and air witness accounts are very, very important. so when the ntsb team gets there, obviously it will be night time in san francisco, we assume the bulk of their inspection will come in the morning but they can light it up overnight if they want. they are saying this is one of their most accomplished pilots. how much of the investigation is doing the who was the crew? who was the pilot? how much experience does he have? and how much of it is the data available to them on the black boxes and other computer materials that they will recover from the site? it s important what is on the cockpit voice recorder and the flight data recorder, the two black boxes that is the evidence of what was said and what happened. but the ntsb has been very tuned