2:14:26 WRN/WN0906010214 213100206ADVISORY CABIN VERTICAL SPEED
JCJeant
This was the last ACARS message. It indicates that an aircraft that had been at 35,000 feet 4.5 minutes before is now below ~8,000 feet and experiencing negative cabin pressure differential (If I remember the analysis correctly).
Some time after that the aircraft impacted the water at a high AOA and a relatively low forward speed indicative of a deep stall that was not an instantaneous deep stall, but instead indicative of a stall that had fully progressed into falling safe mode (because of the relatively low forward speed).
JCJ, are you hinting that the crew could have done something after this message that caused the VS to depart while airborne, or that the aircraft attitude created aerodynamic forces sufficient to break off the VS in a forward direction (a tail slide)?
Do you really think that there was sufficient time to do this, or energy available in the airstream at that point?
What about the arm 36g condition? How would you explain that?
BTW, (For those that believe the impact attitude resulted from a last minute stick snatch at the bottom of a flameout descent.) I very much doubt that the aircraft has enough elevator authority, in any control law, to pitch the nose up into a
deep stall at the last instant before impact and still meet the encountered impact conditions. You would need a powered stabilator to do that, and the impact energy would be higher than that observed in AF447.