I do not encouter a CTD any more. I had encountered it when I could still go into the menu, while the flight was loading.
I now encounter a “stuck on boot”-like problem. I get the blackshark.ai clip, then the background image of the London-Update. Then I see an Xbox-Live window flashing up for just a blink of an eye (probably attempting to sign it) which fails after a few seconds and presents me a connectivity error warning (hence I had posted in the Connectivity category). If I acknowledge this error, I land on the “Any key to start” page where I am then prompted to log into Xbox Live which, when I do, leads right back to the error message mentioned aforehand.