I'm an outsider, for a short time here only, sorry. Simply interested whaat foreign pilots think of it, as compared with our pilot's forum. I'm Russian, and no relation to aviation, but naturally interested, why the Poles broke on our land. As we were a host country.
This is the link to the local blog with the discussion. Many maps of? something. that you find here important. I'll translate you the conclusion on wghich the discussion stopped at a Russian forum, if you wish. That is, until new data, of boxes, becomes available.
Катастрофа Ту-154 президента Польши - Страница 55 - Авиационный форум AVIAFORUM.RU