Pindi
Memories of '56 inevitably grow dim. But I believe his defence at his Court Martial was was one of conscience. Of course there was no Courts Martial Appeals in those days, and the European Court did not exist. But presumably the Court came to the very reasonable conclusion that the pilot could have gone to his boss and said "sod this for a game of soldiers" (or words to that effect) and he would probably have been dealt with administratively under LMF procedures. But you do not sabotage one of HM aircraft as a matter of conscience!