The engineer partners closely with Fleet Support Engineering, Reliability and Maintainability Engineering, Product Engineering, Reliability Data Engineering, Supply Chain, Manufacturing, Finance, and Operations to ensure sustainment decisions improve fleet availability, customer support, affordability, and long-term system performance. Develop repair-versus-replace and repair-network business cases that assess discard, organizational/field-level repair, depot or centralized repair, supplier return, and redesign alternatives using repair yield, turnaround time, labor, test-equipment requirements, supply lead times, fleet impact, risk, and lifecycle cost.