I got reply from Aviation CV - that is the contractor for BAA. You have to pay for down payment of 11k EUR and subscribe to a financing scheme. It looks something like this: in the end you will have paid 55k EUR (with interest), first year of employment salary= zero, second= around 1k EUR, ... year six (end of the bond) 3,5k. And wait for it.... Work is NOT guaranteed! After one year without job, you can cancel the contract from your side, after two years of unemployment you would get 15k EUR back. If you try to cancel the contract under any other circumstances you will have to pay fine.
I think it is not worth it. I will have to borrow money for TR, 55k is too much. What about living costs etc. I would have to have two jobs to survive