What is a long-time solution for it?

Any way, Boeing‘s analyses tell us that in the next decade the world is going to need over 30.000 new mechanics every year that is more then double then what we are getting now.

This gives us the warning to start making a different plan for attracting young people to work in the aviation maintenance industry. MRO should focus on making more flexible plans and grow up the standard of its workers so they would be supported to stay working and to express their satisfaction to their community.

Aircraft maintenance is a stressful environment so young people hesitate from joining it. Very soon it will get even harder to attract new mechanics and engineers to work in this area. Also, expanses are getting even higher, which is good for new personnel but it could be deadly for maintenance organizations on long runs.
Aircraft mechanics job opportunities are rising every day so to keep what you already have is going to be hard.
My suggestion is to make plans for all kind of staff that will include attractive salaries, good shift pattern, flexible working hours, and even relocation packages for those who wish. The solution is to spread your opportunities to those from other parts of the world to join you and to be happy with other conditions as well. Make a multicultural environment so anyone would wish to join your company and support your ideas.
Aircraft mechanic jobs are not only jobs anymore, but it also came to the point where it has to be a way of living, it came to the point when it has to be a wealthy way of living for anyone.