The problem is some bean counters make decision as such and such moves are not cost effective and so on. I bet it's more expensive to have another crash than putting up the money to fix this problem. Aren't airlines AND FAA opposing this fix because of cost?
Alas, penny wise and pound foolish.
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Dan
"It is not doing the things we like to do, but liking the things we have to do, that makes life blessed." - Goethe