suggest. new video captured on airport security cameras show the heartstopping moment asiana 214 crashed this july. it hit a sea wall and did a 360 before coming to rest. >> oh, my god. >> reporter: new details about what happened inside the cockpit. the pilot flying told investigators he was uncomfortable landing visually. without an instrument approach to guide him. he was a trainee on the 777 but had substantial experience in other aircraft. on top of that, he didn't completely understand the 777's automated flight system. investigators say he thought the plane's automatic throttle would kick in, increasing speed even in idle but it doesn't work that way. >> we have an issue in aviation that needs to be dealt with,