KikoLobo
It was intergranular cracking due to corrosion on the inner surface according to the Feds, Which I think is fairly unusual.
Normally the unmodified S/S fails with too many high cycle counts on 35 year old grease...This was way back when and we were using pretty old machines and original shafts and exmil grease..The K-flex solved the problem...
The UH1H is a sweetheart in an auto, but I prefer the 206 if we're playing Auto's as it's more manouverable close to the ground if you really want to make that spot... and I'll try to dig up the photos after the break, not very good as they were taken by our POI with a Fed camera...supplied by the lowest bidder ;-)
Feliz Navidad