Okay, I've found it as the Antonov An 74 (civil version) or the An 72 (military) or even the An 71 (AWACS) by Eastern Express in 1/72nd scale or 1/288.
If memory serves, I saw a recent pic somewhere of the YC 14 cocooned in the desert.
Which begs the next question, what became of the other one, the YC 15?