Originally Posted By: MolaKule
I suspect (from looking at the pictures) one of the fan blades developed a crack at its root and hit the containment ring.
can see the remnants of the failed fan hub...construction of it looks like it's a sacrificial element in the event of blade failure, let the whole wheel go, rather than have it shake a wing off.
...but having the high cycle fatigue that hub is going through, plus the inability to monitor it isn't my idea of a good design.
I suspect (from looking at the pictures) one of the fan blades developed a crack at its root and hit the containment ring.
can see the remnants of the failed fan hub...construction of it looks like it's a sacrificial element in the event of blade failure, let the whole wheel go, rather than have it shake a wing off.
...but having the high cycle fatigue that hub is going through, plus the inability to monitor it isn't my idea of a good design.