Hi Axel-Flo,
you are indeed correct. The BoI submitted a finding which said "In assessing human failings the evidence is insufficient to be specific." , although it did go on to state that regrettably, Flt Lt Tapper failed in his duty to ensure the safety of the aircraft, crew and passengers. It is important to note that that is not negligence though.
In giving his evidence to the House of Lords Select Committee, Mr Wratten said, " Forgive me, it was a perogative that Air Vice Marshal Day and I had to send it [The BoI Report] back to the Board of Inquiry and to draw that to their attention and say, "Come on, you have to be more positive than this.""
It would appear that the original finding was not to the liking of the Air Marshals, so they simply sent it back requesting a finding that fell more in line with their own opinions.
Seems they are doing the same with certain Ministers too!!
Regards
Brian
"Justice has no expiry date" - John Cook