The American Airlines Captain fashion pack was released for Ken in 1965. The product code is 779-1965. It is a revised version of a fashion pack that came out a year prior.
Description[]
Release Date: 1965
The outfit was revised this year. The navy uniform, cap, black socks, shoes and flight bag were joined by an AA zippered flight bag (like the one in Barbie® doll's American Airlines Stewardess #984). The shirt and tie, however, were omitted this year.
All images and descriptions courtesy of Collector Books, publisher of "Barbie Fashion: Volume 1" and "Barbie Fashion: Volume 2" by Sarah Sink Eames
http://www.thebarbiecollection.com/ken-700-series-fashions/american-airlines-captain-779-779-1965