On Saturday 3 September, Royal Australian Air Force (RAAF) Boeing B737-7DT(BBJ) A36-001 was spotted arriving into Mackay Airport as "Envoy 90" from Townsville.
It spent a short time on the ground before departing to Bundaberg Airport where it also landed for a short period of time.
A36-001 was later noted departing Bundy for the Brisbane West Wellcamp Airport near Toowoomba.
I assume this visit was purely a training flight as no passengers were noted leaving or joining the aircraft at least at Mackay Airport.
Photo taken by 'AC' ©