What I find strange is that Martin Baker SIL 407 was issued just a few days after the accident, but it does not get mentioned in the SI report. And yet, testing was carried out using the criteria set out in the document (para 1.4.3.9) which suggested that the new approach was OK. Yes, I know there are those who will say that SIL 407 came after the accident, but this was the immediate mitigation in order to prevent other accidents. In the same way Nimrod fuel loads were reduced after the XV230 accident. That fact got mentioned by the BOI and the Coroner.
However, we now know that the "new approach" was not OK; hence the introduction of the feeler gauge in SIL 407A two years later. This too fails to get a metion at the Inquest.
It does appear to me that every effort has been made to steer the "cause", and blame away from seat failure to inadvertent pulling of the firing handle.
DV