Reduction of aircraft maintenance costs has been a challenge to aircraft operators for many years. It is well known that powerplant maintenance costs are a significant percentage of these total costs. Douglas Aircraft Co. is using new methods, checks, and controls during the early design phases to guarantee that established goals for the DC-10 will be achieved. Programs have been developed that will result in high system reliability and ensure optimum maintainability. This paper describes the implementation of these programs for powerplants and associated systems.