Applying Best Practices to Military Commercial-Derivative Aircraft Engine Sustainment: Assessment of Using Parts Manufacturer Approval (PMA) Parts and Designated Engineering Representative (DER) Repairs

This report assesses the feasibility and extent to which the Department of Defense might decrease the operating and support costs of its military commercial-derivative engines without a loss of safety or reliability through greater use of Federal Aviation Administration–approved parts and repairs provided by companies other than the original equipment manufacturer.