If I might just offer a word of support for Engines, as memories fade with time; mine more than his. I know and see regularly the long-retired RAF officer who "trained the trainers" before introduction of these aircraft. He did the same job on Chinook HC Mk2 in 1992, being the officer who first reported that Boeing hadn't a clue about FADEC. In retirement he spent much of his time with the ATC and remains distraught at this debacle.
Engines, their failures are no longer entirely under wraps! Names have been published.