DESCRIPTION/Most gas turbine engine failures are "contained" which means that although the components might separate inside the engine, they either remain within the engine case or exit it via the tail pipe.
This is a standard design feature of all turbine engines and generally means that the failure of a single engine on a multi engine aircraft will not present an immediate risk to the safety of the flight. Sizeable pieces of ejected debris may, though, present a hazard to persons on the ground. (Continua en SKYBRARY)