Hi Mr Purdey,
explanation (not that it was required) accepted with regard your question to K52. It just came across to me the way I mentioned earlier. No problem - move on. No offence intended.
With regard the final transmission matter, I have written to the MoD to ask them to clarify a few issues surrounding that point. I understand that the ATC equipment at Scottish Mil was inspected and that everything was found to be in working order. This begs the question, why was the call not responded to (and also why no second call from the Chinook).
The second part of the question can never be answered, but I wonder what, if any procedure or follow up investigation was made into the 'missed' call. That's my line of enquiry at the moment. If I get anywhere with it, I'll let you know via a post.
As always,
My best to you.
Brian
"Justice has no expiry date" - John Cook