Exactly the same thing happened to me when I printed out the Huey. The last page wasnt sized the same as the first two and I got a bit of the fuselage around the engine left off the page. I have a very old HP printer at home that doesnt allow scaling; only origninal size and fit to page; if I went with fit to page, the first two pages would be 100% but the last would be 97%. So, I went with origninal size and accepted the gap.
This seems to be a problem when individual pdfs are used, as opposed to single pdf files. I cant be certain, but I suspect that if all three pages where in the same pdf, then all pages would be the same size when you clicked on the "fit to page" button. But still, its a bit sloppy...this kind of thing really shouldnt crop up at all in a finished product.
You can see the effect in the picture here:
I colourd the strip in with a coloured pencil that was as close as I could find to the fusalage colour, but it still looks a bit odd...but only to those who know it shouldnt look like that
The colour printer we have at work allows scaling to what ever size you like, so if you have an up to date printer, it should be possible to scale all pages to the same size as the one page that wont fit at 100%, if you see what I mean.