Many african countries are unfortunate because all theirs planes are listed for non flying black list,I wonder why they do that ,why for god sakes the countries can buy or have one and only one plane which is safer instead of buying expensive oldest planes in the desert for the same amount of money which can buy one new plane from the factory?when they will be responsible,why everything is that difficult to them, the problem is cupidity is high. the crashes will go on untill the find out how to throw away those stupids oldest plans which are killing thounds of people.