Thanks, Bob. In doing some more digging, I found an accident report on 58-0721 in Jan 1975 at NAS New Orleans, and that gave me a piece of the puzzle to work on. I was also able to back track through 706th Fighter Squadron history to learn that the unit had previously been your 706 TAS. I'd only ever known and associated the unit with A-10s in the 80s/90s.