I agree, opsec. And I think the fact that they didn't anticipate the cold temps and use more appropriate hydraulic fluid, is just mental laziness on someone's part. It surprises me that that would be the only cause though, because I thought that private utilities that specialise in turbine maintenance are typically contracted to manage them.
Another problem with these big turbines is that the seals meant to exclude dust, moisture and outside air from the housing are totally inadequate. They're designed with the philosophy that "crap is going to get in no matter what" since most of them were designed to be placed in the harsh environment of the Western deserts. That's according to one of the industry's engineers to whom I tried to sell my components.
