PJ2, Bearfoil, Wes_Wall;
"Surprise" - was certainly the end result. As PJ2 knows, I had previously made reference in the old AF447 thread to what I surmised may have been an insidious fault with the radar. By that I mean one that the inbuilt self-diagnosis fault system had failed to detect.
"Surprise" - because the flight was obviously proceeding normally and there was no marked change in GS over the last half hour before 0210z. So, I have assumed that if there was any turbulence experienced, it was of the light chop variety.
"Surprise" - because if none of the above turns out to be true, then what was happening?
mm43