At JS0987 & FH1100, I suggest you take out which ever helicopter you are qualified on out on a flight, make sure you own it and there are no passengers and you are over an suitably uninhabited area and in the cruise slam the tail rotor pedals first to one extreme than the other then back and see what happens to the tailboom. That's for the AA/Queens accident, that's according to the NTSB and I am certain that they are not in the pockets of any airline manufacturer.
If you guys have some deep insight into the AF crash in the Atlantic, I am sure you can send your comments to the BEA, I'm sure they will give you the time of day. Maybe you have the psychic ability to read the CVR/DFDR from 3000 metres of water.