JT, you're so right about relying on memory! More straining of brain cells later:
(a) He was still an FO when the 1989 dispute erupted.
In retrospect simple mathematics would suggest that I might be wrong. The incident occurred in 1983 (?), so that the 5 years’ ban would have expired prior to the dispute. I have no recollection of him gaining a command again or not.
As for the remainder, I've PM'd you...