[Java4Jay]

[Kickass Conservative]

No wonder they're having problems, those Red Arrow thingies are hitting the Fan Blades and the Red Circle thingy probably gets all tangled up when the engine is running.

And who is the Idiot that put those Red Letters right on top of the Compressor Blades? Those sharp corners will tear them up, especially the “q” that's sticking down into the mechanism.

Are those guys Color Blind or something? I can clearly see the problem and I used to be a Corporate Manager, not a Jet Engine Mechanic.

[UNGN]

The fan shaft is designed to separate in extreme stress events to avoid over-speeding the LP turbine and risking an uncontained failure.

So to avoid overspeeding the Turbine, they intentially allow the LPT Rotors to crash into the LPT stators, because that is safer than the alternative (a grenade).

That would mean there is no reverse thrust loaded Bearing aft of this part that breaks... hmmmmmmmm....

I wonder if normal takeoff run ups are considered "extreme stress events".

GE is going to have to walk a fine line if they want to make a part that doesn't break, yet breaks when they want it to and not have the airline inspect it every 10 flights to see if its breaking yet. They are asking a lot out of IHI.