Busy day for the 2-#### planes I just found this one over US.
2-RNWL Cessna 525 CitationJet M2 525-0980
2-AUER went from Zurich to Prague earlier.
Can't rule it out.
2-RNWL dropped off radar heading E near Wichita Kansas. It is a Cessna so it might be a delivery/maintenance flight coming out of the factory.
Wonder where he's heading.