Or just an engine explosion. These happen more often than you'd think, but they are usually contained; engines are built to try their best to withstand such eve

Or just an engine explosion. These happen more often than you'd think, but they are usually contained; engines are built to try their best to withstand such events. A notable recent exception was QF32. This incident came very close to ruining Qantas' zero-passenger-fatalities-on-a-jet-aircraft-ever streak. It started as an oil leak in engine #2, due to an oil pipe that was manufactured incorrectly. This then lead to an engine fire, and shortly after that, a turbine disc explosively disintegrated, launching three high-velocity fragments radially outward from the engine, severely damaging the aircraft, before the crew could even react to the fire.