If after the time of this post you get a server error (502 Bad Gateway, 504 Gateway Timeout, etc) anywhere on the AE site, please describe the problem in a reply to this thread with the following information:
1) Error message / problem
2) Date and time the problem occurred (including your timezone)
3) URL at which the problem occurred
4) What you were doing when the problem occurred (loading the My Airlines page, saving a route, clicked "Change Aircraft" button, etc)
5) Was the problem persistent? (did refreshing the page fix it)
6) Any other notes you think would be helpful
Thank you for your patience as we continue to iron out the remaining teething problems on the new server.