Why was "Boeing might quit producing the 747" locked?

[TomS]

I know the discussion of Air Force One is a bit of a derail, but not that far off since that was one of the programs that might have sustained the 747 line for a little while.

https://www.secretprojects.co.uk/forum/index.php/topic,27737.msg314041.html

Edit: Nevermind, it's back.