I'd call ahead to make sure you can get do the tour. I went during the strike, unknowingly, and there were no plant tours. We got a drive around airfield so that we could see the planes, but the museum itself is more of a visitors center and tour waiting room. Still not bad as everyone got in for free so "they could stick-it to management."
This plane needs to get in the air as I read airlines are shifting to the A330 rather than continuing to wait.