EricFerret, Shytorque
AD2000-371 referred to BT109EP-12, inspection of scissor links. I have not seen BT109EP-86 but you say that it deals with marking of the link to aid correct installation.
As far as I am aware (and I stand to be corrected) the link can still be installed the wrong way round - is Mr. Murphy still alive and well?? It was this design fault that was never addressed following the previous accidents, the UK CAA seemed to ignore it.
I hope that I am wrong concerning the cause and I wish the pilot a speedy recovery.