Quote:
Originally Posted by Thomas Collins
Greg - you can open the door from the outside, via a code, just for the very purpose of accessing the flight deck, should both pilots be incapacitated.
Here is a video that explains the door opening and closing process in detail.
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So if "when the elapsed time is over, with no action from the crew, the door goes into unlocking mode", then a not-so-incapacitated lone crew member could still override the codepad, which to me means the codepad in itself isn't enough. AA's procedure seems appropriate and from what I've seen, procedures in Australia aren't terribly different to that (although never seen the cart used as a barrier).