Hey Eljaro, Chas and all
Sorry all for the delay, as this is a "G job", the paying customers have to come first. But rest assured we have accumulated some very interesting data in the 21.2hrs we have in it so far. I have asked that it be completed soon, we are shooting for the next two weeks. Our initial review suggests a machining defect in the fillet radius as the initiation point, However a problem also exists within the microstructure of the material. The combination of the two appears potentially fatal.
On the good side, if the data proves out, we should be able to offer a fairly accurate NDT acceptance model for checking the microstructure of the material before installation. Here is a hint for the sharp eyed!
Best regards
jason