as a pilot, let's look at, analyze this video. you see them making the approach here. it's hard to tell. does it appear he's coming in too low? >> yeah. it seems very clear. in fact, the witness who, i don't think he is a professional accident reconstructionist, watched planes come in from time to time and was filming this, even to him it appeared off yus there was something different about this approach and it was low. he could see the nose of the plane pitched up, which means the plane is getting slow. just from this video alone you can see the two critical parameters of what went wrong with this approach. it came in too low and the plane got too slow. >> what are the key points from the ntsb chair that stand out to