People seem to seek clean-logical data that logic and engineering can explain. Life isn't like that.
The best explanation for AF447 are the first three sentences of this quote from Frank Herbert's "Dune".
“I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.”