This is supposedly a MOX plant. http://en.wikipedia.org/wiki/Tsuruga_Nuclear_Power_Plant
Since the latest guess in pin-holes in cladding I am hoping the issue is small for them and does not over burden their current nuke work load - they have enough to do already.
Ah...I see that you have to click on ‘situation update’ tab at the link to read the excerpt and the prior update #1.
this is a different power operator?
pinholes in currently-in-use rods don’t sound good - what causes pinholes? in titanium? no coolant?