Hello,
Originally Posted by ARFOR
bearfoil
Yep, put the trailing edge front on to high speed air flow. Barn doors are not designed to withstand airflow from behind [swept wing roll without VS, flick, yaw, all over red rover]. The only way that could happen is loss of the VS following assem upset at alt.
What precipitated the loss of the lateral control [the VS] is any ones guess [Takata will chime in i'll guess].
What precipitated the loss of the lateral control [the VS] seems to be impact with water.
At least, there is no clue that it happened between 02.10 and 02.14. Such a loss would trigger critical Hydraulics faults and all the relevant ACARS are missing. As none were received, it may be reasonably pointed that VS was not separated or badly damaged until ACARS stopped.
What happened later is still unknown but in flight separation would have certainly caused another kind of impact that what the investigation described. Now, one may want to be convinced that the BEA is bullying everybody but it would have to be done in collusion with NTSB and other bureaus working with it.
S~
Olivier