On Saturday 26 January, a pair of Aerorescue (AMSA - Australian Maritime Safety Authority) Dornier 328-100 aircraft were noted flying through Central Queensland. The aircraft are operated by Aero Pearl in Darwin.
VH-PPV (pictured below at Rockhampton Airport in 2011) was actually noted arriving into Mackay Airport from Cairns on Friday 25 January. After overnighting back at its Cairns base, VH-PPV was believed to have returned to Mackay on Saturday 26 January, where it performed two return survey flights using the callsign "Rescue 441".
Meanwhile, VH-PPQ was noted ferrying through Longreach Airport on Saturday 26 January. VH-PPQ had arrived from its Darwin base, and later departed Longreach for Brisbane