SS - I'm not sure why that prompted a rant up.
I know it is easy to play the "think of those that died... show some respect" card but frankly I didn't rush to anything.
In fact it is you that has been "interested" by a host of theorem throughout this thread, and if I merely quote your last comment on this thread [your own bold]:-
"A fault relating to one of the display systems was recorded and further work is being undertaken to establish the meaning and possible causes of the fault."
It'll be interesting to find out what that fault was. "
Perhaps you might even agree that finding the reasons for any accident is better sooner than in 18 months??