These things leak
My farmer friends work around them, and oil leaks down the support columns and blades. The blades sling oil far away from the turbines. Crops take up the hydrocarbons which wind up in our food.
Well I’ll be. Funny you don’t hear about this utter failure. I’ve been my own mechanic for many years, not anymore, but even I can attest to the fact that if it contains a liquid, it will eventually leak unless maintained.