Just as a general coincidence of course, I recall that the empennage of the Air France 330 off the Brazilian coast - was the first part of the aircraft to become apparent in the water. Just an observation, I claim not to know any 'hows'.
(The empennage is relatively light from my humble experience, with much space inside, having been up in and around Boeing tails for various reasons). Rgds
Last edited by itflewinitflewout; 20th Mar 2014 at 08:45.