GK
You're not going to find anything "conclusive", but have fun looking for it.
My source, as I stated very clearly, was on the mishap investigation. He was in the room when the conversation took place.
Beyond giving you his telephone number and email address (which I am not going to do), there is nothing more I can add. Take it or leave it.
If you did spend any time in the military, then you won't struggle with the concept that what you read in an official document may not tell the whole story of what actually happened. 'Nuff said.