Happy New Year, Brian, a very well done to all involved in this latest chapter.
It's good to see what we have been saying for so long has now achieved the wider public airing that it needed.
I'm not certain, but in my time in the service, which as you are aware, corresponds to this same time frame and predates it, I don't ever recall any RAF BOI that mentioned airworthiness issues in any detail, but only the serviceability of the individual airframe at the time of the accident.