victor crash irish sea
I discussed this loss with a EPTS graduate who was also a well qualified engineer and technical Officer at Boscombe.Having test flown the aircraft,and despite pressure from his betters, he refused to sign it off as airworthy because of problems with the yaw damper.He then went on leave and while away his immediate superior overuled his report and the aircraft took off never to return. If I recall correctly the exact cause of the crash was never discovered but one can draw conclusions.