You are probably liable to show your data to your home-base government agencies. Besides that, we all know that the NSA in the USA has obtained inspection of data from foreign owners. This may not be in compliance with your national privacy regulations.
FL3XX does not host any data of European airlines in the USA or with any USA company (although some are foreign subsidiaries of USA companies). On request FL3XX can comply to any requirements you may have on privacy compliance or other such concerns.