It has been established that Racal’s post-crash examination of the SuperTANS, data recovery and analysis was flawed. The methodology was not validated, meaning the conclusions are unverifiable. Unverifiable – like almost everything connected with the flight (although not the major airworthiness issues preceding it).
My opinion is that any talk of the SuperTANS in the above context merely lends credence to the MoD’s assertion that the complete Nav System was both serviceable and accurate, when the only “evidence” comes from this unverifiable source which could only examine one badly damaged component of a larger system. At the very least, that constitutes reasonable doubt.
Setting aside all the debate on airmanship and engineering (and we debate because we don’t know), the underlying issue is the MoD’s basic defiance of natural justice which, in their supreme arrogance, leads them to act as judge and jury in their own case.