[Petah78]

Originally Posted by Tcoat

The info that we have got right now says:
All happened with prior zero indication of a problem at a very low mileage.
All the reports that gave details have said a single bearing went out.
All oil samples from engines with no problems have come up good.


Unless we get differing data the trend is glaring.

I concur with all your stated facts. But what are possible warning signs for a spun rod bearing? All the reports of failure that i have seen are for a single rod BUT i have also not seen other bearings from the same engine (maybe i missed this?). My theory is that this can be a sudden or a gradual death, and in the event of a gradual problem, UOA will pick it up.