From Scott L. Felton of Conwy UFO Group, North Wales, UK.

Dear UFO Enthusiast, I'd be grateful if you could forward this to your contacts as I'm trying to gather some information on a particular document which quite a few UFO enthusiasts out there have in their possession. Most if not all, will be in the possession of UK based enthusiasts or perhaps British enthusiasts living abroad. Copies however could be almost anywhere.
 
I have in my possession a copy of a document which is a Major Incident Log, set up to record events surrounding a suspected airplane crash on Cader Bronwen Mountain, North Wales on the night of 23rd January 1974. This is the same night as the infamous Berwyn Mountains UFO event which is often described as a crash.