​The Boeing 737 in question was previously operated by Rex Airlines, Australia's largest independent domestic and regional airline. Rex has been expanding its fleet, adding its tenth Boeing 737-800NG in December 2023 to meet peak summer demand. ​
Simple Flying
Following its service with Rex, the aircraft transitioned to a Ukrainian charter airline. Several Ukrainian carriers operate Boeing 737 aircraft, including SkyUp Airlines, Windrose Airlines, Jonika Airlines, Constanta Airline, Air Urga, and Bees Airline. ​
The aircraft recently underwent a successful test flight in Marana, Arizona, as part of its preparations for reintroduction into service. Test flights are standard procedures to ensure an aircraft's airworthiness after periods of storage or transition between operators.​
It's common for aircraft to change operators and regions, especially when airlines update their fleets or adjust to market demands. This particular Boeing 737's journey from Australia to Ukraine exemplifies such transitions within the global aviation industry.​