Hi Latecoere,
Being a contractor at Brussels Airlines is not funny...Starting with the conditions / salary package : you could earn way more at Easyjet or Vueling. Furthermore, don't expect any respect from the cabin crew / the belgian pilots as you will be seen as "stealing" their job, nor will they speak english with you (not a problem if you speak french / flemish or both). Even your company badge will have a "green band" on it stating that you are a contractor.
Only go there if you can't find anything else...but FYI a lot of (if not all) the non belgian contractors left during the last few months...and don,'t expect a contract in the winter (company agreement between management and unions).
Hope it helps