You're kidding, right?
If you need to teach the GE90, chances are you're supported by GE
, an airline, or both. If not, the GE
web site is as good as it gets for you.
This post is as funny as others that request gouge on starting an airline (costs), or actually aquiring an a/c...if you have to ask on this forum, chances are you don't have any business asking.