Controlled flight into terrain

A controlled flight into terrain (CFIT, usually pronounced cee-fit) is an accident in which an airworthy aircraft, under pilot control, is unintentionally flown into the ground, a mountain, a body of water or an obstacle. In a typical CFIT scenario, the crew is unaware of the impending disaster until too late. The term was coined by engineers at Boeing in the late 1970s.
Ver en Wikipedia.org