Mepụta ụdị nke ahịrịokwu a Ọ kwubiri na ihe mberede a bụ ụdị a maara dị ka Controlled Flight Into Terrain (CFIT) nakwa na enweghị ntụpọ na ụgbọelu ahụ ma ọ bụ usoro ya nke nyere aka na mkpọka ahụ.
N'ezie, ụdị nkebi ahịrịokwu ahụ dị mgbagwoju anya bụ "E kwubiri na ihe mberede a bụ ụdị a maara dị ka C.F.I.T. (Controlled Flight Into Terrain) nakwa na enweghị ntụpọ ọ bụla na ụgbọelu ma ọ bụ usoro ya nke nyere aka na mkpọka ahụ, n'ihi nke a, ọdịda nke ịgụpụta ihe ndị ahụ n'ụzọ ziri ezi na-adabere na onyeisi ụgbọelu. "