1 9 5 3 , ▁it ▁had ▁a ▁fleet ▁of ▁th ir teen ▁Douglas ▁DC - 3 ▁' D ak ota ' ▁aircraft . ▁The ▁DC - 3 ▁aircraft ▁were ▁brought ▁from ▁US ▁Air ▁Force ▁at ▁a ▁throw ▁away ▁price ▁after ▁they ▁were ▁left ▁un used ▁at ▁Ass am ▁after ▁World ▁War ▁ 2 . ▁ ▁Acc idents ▁and ▁inc idents ▁▁▁ 5 ▁April ▁ 1 9 5 0 ▁A ▁De cc an ▁Air ways ▁C - 4 7 A ▁( reg istration ▁V T - C J D ) ▁crash ed ▁at ▁H ati ara , ▁while ▁attempting ▁to ▁return ▁to ▁Dum ▁Dum ▁Airport ▁after ▁an ▁engine ▁failed , ▁killing ▁all ▁three ▁crew ; ▁ 2 1 ▁November ▁ 1 9 5 1 ▁A ▁De cc an ▁Air ways ▁C - 4 7 A ▁( reg istration ▁V T - AU O ) ▁crash ed ▁at ▁Dum ▁Dum ▁Airport , ▁while ▁attempting ▁to ▁attempt ▁to ▁land ▁was ▁made ▁in ▁extremely ▁poor ▁visibility ▁conditions , ▁killing ▁all ▁four ▁crew ▁and ▁th ir teen ▁passengers ; ▁ 1 9 ▁February ▁ 1 9 5 2 ▁A ▁De cc an ▁Air ways ▁C - 4 7 A ▁( reg istration ▁V T - AX E ) ▁crash ed ▁on ▁landing ▁at ▁Son ega on ▁Airport ▁due ▁to ▁pilot ▁error ▁and ▁possible ▁mis read ▁alt imeter , ▁killing ▁three ▁of ▁ 1 6 ▁on ▁board . ▁ 3 0 ▁April ▁ 1 9 5 2 ▁A ▁De cc an ▁Air ways ▁C - 4 7 A