On Sunday 18 December, Bowenville (near Toowoomba) based Cessna 525 CitationJet CJ1+ bizjet VH-JSZ flew up from Archerfield to Rockhampton Airport before then later returning down there.
Brisbane-based Avcair Cessna 425 Conquest 1 VH-BSM visited Blackall Airport from its Archerfield base. It also visited on Saturday 17 December.
And Brisbane-based Piper PA-31-350 VH-RPV flew down from Groote Eylandt to Adels Grove and Emerald Airport before continuing to its Archerfield base. It looks like VH-RPV had flown up there the previous day.