director at airline ratings.com. he is joining us from perth, australia. good to have you with us. given the singular piece of wreckage what can investigators determine from it? >> george it's probably a little early to say precisely other than -- the fact that this piece of wreckage has turned up where they expected it to drift to. the university of western australia did a drift analysis that we discussed on cnn over 12 months ago that showed after 12 13 months' time the debris would with whatever debre there was from this crash would turn up in this particular part of the world. that's based on the fact that the plane crashed where we believe it did in the southern indian ocean.