... developingbetter purchasing practices for engine bearings) designed to integrate the tenets of PSM with the Air Force s supply chain management. 2 The F100 Engine Purchasing and Supply Chain Management Demonstration tion ... supporting engines and 44 percent of all expendi-tures on engine sustainment were for the F100. 4 The F100 is such an important part of Air Force engine expen-ditures, and jet engines and their ... purchasing and supply management in an Air Force setting, the Air Force launched a dem-onstration of PSM best practices at the Oklahoma City Air LogisticsCenter (OC-ALC), selecting the F100 engine...