prosecution will drive untold nails into the no blame culture coffin.
There is no such thing as a "no blame" culture, or rather there is not supposed to be in aviation.
There IS a "just" culture, and if not there should be, which seeks to analyse and search out the root cause of why an error occured, rather than simply blaming the nearest mechanic in sight. The MEDA approach, in fact, in one form or another, where maintenance is concerned.
But if the root cause turns out to be that someone royally screwed up, through culpable negligence, or
knowingly ignoring instructions, procedures etc, he or she will get blamed, partially or wholly, and perhaps punished, and rightly so.
It is pretty obvious to me that this
cannot be said of any engineer, at least, in the Helios case, but I'm a zillion miles from that loop and only know what I've read.