ten or so miles at least. in the case of twa 800, the same thing. the debris field was very, very wide. and then there is this scenario. the hijacking of an ethiopian airlines during 1996, in that case, the pilots ran out of fuel and were forced to make an intentional landing in the indian ocean, even in that scenario, there would be debris above the water. you hit it hard enough, it just destroys the airplane s integrity. you will have things open up, compartments, sections of the airplane that have items that will float. reporter: indeed, the sentiment is widely agreed upon by experts. here in southern california s aviation safety program, the director says crashes on the water will almost certainly leave floating debris. to listen gering question, the lingering question, how far
214 to crash. those investigators have been using examples from previous crashes to help them. cas casey wyans show what they learned. reporter: several korean accident investigators got their training here, according to the aviation safety program. inside and old sears warehouse where the twisted wreckage of plane crashes serves as a classroom for accident investigators. what you see around here is a safety system that has failed. reporter: instructors took me through part of the training. what strikes me is there was a big fire here and it doesn t look like anyone could have survived this. reporter: what do you see on that left wing? i see twisted metal. it looks like some sort of significant trauma happened to that wing. crashed into something. hit something. i don t know. a pole. reporter: we teach the discipline of accident investigation namely to observe
live. we promise you will not miss a thing. we re watching some other news this morning. a third person has died as a result of that asiana flight in san francisco s airport last week. she d been only identified as a young girl who had been in critical condition since the accident happened. meanwhi meanwhile, all four runways at the airport are now clear but, of course, the investigation into what caused the crash continues. cnn s casey wian visited the warehouse in california where the accident investigators are trained to put the pieces of this puzzle back together. oh, my god. reporter: several korean aviation accident investigators now looking in the asiana crash got their training here according to the aviation safety program. inside an old sears warehouse where the twisted wreckage of plane crashes serves as a classroom. what you see around here is a safety system that has failed. reporter: instructors took me through part of the training.