Two of three J41s parked in the maintenance area of JNB's domestic ramp area.  -OEX is the further of the two; the closer of the two has no identifying marks.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/20889289654/">SA AirLink ZS-OEX and unknown Jetstream 41 at JNB</a>