eglnyt...We went through in 1979-1982. About 36 on the course, all of which had the qualifications I outlined above. I think there were 4 who didn't qualify/validate. Three ended up as senior ATSAs, one guy left the service completely, a great shame. A couple failed the odd exam, but ended up re-sitting stuff and eventually validating. Of those who validated, 4 left and became senior airline captains. So, about a 90% success rate, in terms of unit validations achieved.