Quote Originally Posted by MarkCO View Post
Was a while after TO, was too high for a bird strike. If you look at the photos, there is circular damage, likely a failure of a fan blade. Extremely rare failure.

My father worked for McDonnell Douglas in the early 60s and participated in many chicken gun tests on control surfaces, windshields and turbo-fan engines. Now that he has some dementia, the stories are less, but those are still some of my favorites.
Definitely a blade failure. Early CFM65 experienced this according to wikipedia. I still think something hit the blade to damage it. It would be a real shocker if it was a Lyrid shower meteorite.