SMJ-OPS
Their only MD11 (Z-BVT) flew SMJ504F on the 29th of September which could have been the ferryflight you described. I do not know DEP/DEST of that flight. It then operated SMJ217 (Khartoum-Liege) on the 1st of October and it was seen sitting on the ramp on both the 2nd and 3rd of October.
DC10 Z-ALT operated flight SMJ501 on the 1st of October.