I'm saying the plane was evacuated prior to the foam. I could be wrong, it is only conjecture. Since we're talking hypotheticals, has anyone seen what sane people do when they see flames? "Stay Put! We are waiting for stairs!" In an enclosed environment, flames turn people into animals. PTH's point is out the door if he's wrong. There would be broken necks, crushed skulls and collapsed lungs at a minimum, and that's before the exits are exposed. then it's fifteen feet to the concrete, with half those successful at egress landing on their noggins. Am I saying stairs would NEVER be appropriate? No, I am not.