Dave Gittins, I replied to you recommending that you read this story, which will do a lot to bring you up to date:-
Air France crash: What is known so far | csmonitor.com
For some reason my post was deleted. Maybe because I went on to make some further points. So I'll leave it at that.
Just 'click,' mate........
Your post was probably deleted because the article you link to is almost pure speculation. Not "Known Facts".
Example:
The plane itself also offers potentially telltale clues: The last of the airplane computer's messages reported that cabin pressure, usually maintained at an equivalent to an elevation of 10,000 feet, was dropping at a rate of 1,800 feet per minute.
Cabin pressure had been lost and one obvious cause could be that the plane was falling apart.
There is no proof cabin pressure had been lost.
An aircraft doing an unplanned emergency descent, or even a planned ditching, could quite conceivably experience a cabin rate of descent of 1800 feet per minute at some point in the flight.
I would expect that an aircraft cabin in a free-fall descent (after "falling apart") would descend at something closer to 18,000 feet per minute. Not 1,800 feet per minute as stated.