Undergoing maintenance at the OK hangars at PRG in the early 1990's was this early example of a regional jet.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/22039268814/">CSA Yak-40 OK-HEP? at PRG</a>