The American Airlines Captain fashion pack was released for Ken in 1964. The product code is 779-1964.
Description[]
Release Date: 1964
Girls always liked a guy in uniform, but they couldn't have this one! After all, Barbie® doll was the stewardess on the same American Airlines flight with Captain Ken® doll! His navy blue uniform was authentic in detail. It featured four rows of silver braid trim on the sleeves of the unlined jacket. Captain's wings were on his chest. A long-sleeved white shirt and navy zippered slacks completed the suit. His fabric hat also featured silver braid, an insignia, and a black shiny plastic bill. His other accessories included a black tie, knit socks, and shoes. His navy blue flight log was dated 1963 and was marked "Japan" in small type.
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-779-779-1964