Deliverance
Fair enough, mate, maybe the 2 FL Sqns I was on had a better Avionics Trade Manager! Certainly, 10% (1 in 10) isn't fantastic, but it's better than 50% (1 in 2).
My experience on Ops was always better as the jets were better husbanded and also the climate was normally better (warm and dry) than good old Blighty. That always meant that the failure rate was far better. Also, if you had an 'iffy' jet you would crew out for the spare in good time - as you pointed out having the main RADAR fail 'sausage side' is always a bit of an issue!
LJ