http://www.nytimes.com/2014/04/19/world/middleeast/paper-shows-us-flagged-plane-in-iran-has-ties-to-ghana.html
Also this article: “Mystery Solved?” http://backchannel.al-monitor.com/index.php/2014/04/8179/mystery-solved-us-registered-plane-seen-in-tehran-was-used-by-ghana-officials/