Expectations
I've been involved closely with a BOI on a very different aircraft & circumstansces which came out with an outrageous verdict; it was sorted well in the end but took 5 years.
Tappers Dad, I can only guess how you must feel, but it takes a long time to sort out - a blame exercise is no good to anyone, no-one meant it to happen & designs in haste tend to be put up with once they work, even though the engineers responsible thought they were doing a quick temporary fix - if indeed that's what happened, as I say I'm not Nimrod.
There are 2 important factors as I see it;
A, No blame is apportioned to the crew - I am not a Nimrod expert by any means, but it seems there were snags way beyond their control.
B, Learn by it & incorporate mod's so it doesn't happen again.
Justice, as in cleared names let alone compensation, takes a lot of time & stamina, conserve your energy !
In a way there's one good thing, if it can be called that; no-one has had the crass nerve to call this pilot error.