Originally Posted by
Stumpy Grinder
That blade in the duct also appears to still have it's root; It could be a red herring, defo not a black Griffon........
Well, once the front end departs, the blade would be free to slide out backward, especially if it got a bit jammed in the lining (or what was left of it)? and then the wind could have lodged it where it got stuck.
Another option: the fan ring did split, and it would split at the weakest points, aka where slots for the blades are, freeing the blades in those slots with their roots intact. This feels more plausible than a blade sliding out, but would the ring have split?