Hi Courtney.
The rules in place at the time of the accident stated that in order to find deceased aircrew guilty of negligence (degree of negligence not specified) there has to be absolutely no doubt whatsoever.
Therefore, as there are several areas of doubt, the negligence slur (on all levels) against the pilots should be removed.
That is the aim of the campaign.
Regards,
Brian
"Justice has no expiry date" - John Cook