CHECK YOUR FANS FELLAS. I had no idea that metal fatigue had set in so badly. I had a good look at the White Scout Car fan today and it looks like the problem has been there for a while. Not only with the blade that sheared off but 3 others were on their way as well. The bracket broke as a direct result of the fan being out of balance. There is no sign of a fatigued bracket.
So, now I need a new fan and have the radiator repaired/replaced.
The errant blade.
Metal fatigue for some time.
Another metal fatigued blade.
Yet another Metal fatigued blade.