Hi Wes-wall. I posted the answer to your question some time ago but with the volume of posts, I can well understand that you might not have seen it.
http://www.pprune.org/5085433-post3947.html. But maybe as high as 9000 fpm down.
Since the rudder was thrown forward according to the BEA preliminary report, it is probable that there was comparable forward velocity too , but at this point I'm just guessing.