Originally Posted by
MacLeanBarrier
No one knows what happened to these perfectly good aircraft in good weather: TWA Flight 800, Air France Flight 447, Helios Airways Flight 522, Egyptair Flights 990 and 804, and Malaysia Airlines Flight 370 . Only conflicting reports by the different agencies who investigated. Technology still cannot definitively tell us what happened. A cockpit rush attack could have prevented pilots to make any emergency transmissions.
You lose a lot of credibility and respect by citing these tragedies as some sort of justification for a cockpit barrier technology (one of which I believe you are peddling). Other than 370 (for which nobody knows much of anything that happened onboard) I'm not aware that any of these ever had any suggestions that unauthorized cockpit access had anything to do with them. In fact, since most of them have had the CVR's recovered, it is known that there were no "cockpit rush attacks" in them.