It is all really quite simple isn't it.
The aircraft was not trusted by Boscombe Down. MoD expert witness Malcolm Perks, a principled hero in this tragedy if ever there was one, went public to tell all about the problems with the engine control system.
The shortcomings of the Mark II led to a shortage of operational Chinooks, leaving Jon and Rick at Aldergrove barely current.
ZD576 had had a serious of flight critical problems - and the paperwork to back the claims up - engines were robbed etc. There were the debonding incidents (and subsequent ad hoc wiggle-before-takeoff-SOP) that still make my hair stand on end.
The precautionary landing of ZD576 at Luton Airport a week before the tragedy. No fault found.
Last recorded conversation from Rick Cook minutes before takeoff when he spoke of his concerns with the engine control units.
The boys didn't make the rules but the rules were made for them, to protect them so that only in cases where there is no doubt may deceased aircrew be found negligent. Lady Thatcher, recently cited, voted against Wratten and Day's position in the Lords. She had grave misgivings. The Duke of York, himself of course a helicopter pilot, has also privately raised concerns.
The Ministry must reconsider the finding because the answers left wanting do nobody in the service justice. And as we head into Remembrance Day itself, it is that wider injustice that is poignant. Nimrod et al continue to be echoes of the 94 tragedy.