Unless he has a healthy interest in aviation I suggest you talk him out of it....fast!
The pay is poor, the hours are unsociable and almost everyone treats you like a pariah.
Well in the UK at least.
Most European companies treat engineers with respect and admiration.
If your cousin is still interested then the job can be very rewarding and immensely interesting. Many of the Big UK airlines (BA & Virgin to name two) are taking on 'apprentices' this year so apply to them. A word of caution though, A levels are the min requirement these days.
Good Luck.
