In the early hours of Friday 31 May, Bombardier CL-600-2B16 Challenger 604 VH-URR "Ambulance 604" was noted visiting Mackay Airport. It arrived from and later departed back to Brisbane.
While after the sun had set and as this post is being written, also on Friday 31 May, LearJet 45 VH-VVI "Ambulance 451" is also heading to Mackay Airport, but from Townsville. It is then due to continue to Brisbane.
UPDATE! Worth mentioning that on Sunday 2 June, LifeFlight (Aeromed) LearJet 45 bizjet VH-CXJ completed what appeared to be a test flight from Townsville to Proserpine (Whitsunday Coast) Airport and back.
Photo taken by Scott Harris ©