No European was ever given a rating in this company, everyone has had to pay for their rating.
And no one just bolted either. Everyone gave in their period of notice.
And most people, local or foreign consider leaving or have left by the time they have done 2-4 years in the company.
There is a large turn over in companies in East Africa as a whole.
They want an all African airline. Since those guys are working at home and more likely to stay. Recently they have been sponsoring a cadet program for local pilots and mechanics. For 20 to 30 years there has not really been any government sponsored training and flight school is well beyond reach of almost all Tanzanians.