I flew the earlier versions too, 100,200,300. They would have done well into Kingston. Until we get more data I don't know why they went off the end. Their landing performance charts showed they should have been fine. We will have to wait and see. The metar reports on visibility were useless because they were so out of touch but the winds seemed normal, 10 knot tailwind for an hour before landing until after the crash. That is normal to land with a 10 knot tailwind at AA along with all other airlines. All the visibilitiy reports from 0300Z were wacko. Shift change?