..the authorities are already stating it can be a lengthy investigation, depending on the condition of the recorders and that the captain is assisting in the investigation..
..that already sounds like the recorders are good enough, but that they are now preparing the "actual happening" of the accident to hold water reg. insurance and upcoming passenger law suits..
..lure me - if indeed it was a windshear - that they are already preparing to put all blame on the captain for a takeoff into a windshear "which he is expected to be able to predict from the current WX situation based on education, experience and good judgement"
..just my guess - we've seen it all before..