Ohio-based Castle Aviation will soon begin operations with a freshly converted Saab 340B freighter on behalf of Canada-based shipping and logistics company Purolator. The 1993-vintage unit 336 (ex-Seaborne Airlines) was converted at the Taby Aircraft Maintenance (TAM) facility in Oreboro (ORB), Sweden, and returned to Springfield (SGF), Mo., in late January 2022. After heading to […]