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The article examines the economic consequences of restructuring the supply chain of materials, various assemblies, components, and related production services in the MC-21-310 program with the PD-14 engine. The relevance of the study is determined by the fact that, under import substitution in the civil aircraft industry of the Russian Federation, not only the composition of suppliers is changing, but also the overall organization of production, including the distribution of technological operations among different enterprises, preparation for serial production of this aircraft type, supply of components, repair, and subsequent service support. Under these conditions, supply chain restructuring should be assessed as an economic process that directly affects costs, the timing of serial production, and the organization of repair activities. The purpose of the study is to develop a specific approach to assessing the economic consequences of this type of restructuring as applied to the MC-21-310 program. The paper proposes considering individual segments of the supply chain according to three main criteria. The first is the resource intensity of restructuring, that is, the volume of costs and organizational changes required for the transition to a new supply scheme. The second is the impact on the stability of serial aircraft production, namely the degree to which a given segment affects continuity of assembly and compliance with the production schedule. The third is the importance for service support, that is, the role of the restructured segment in repair, spare parts supply, and technical maintenance of the aircraft during operation. The scientific novelty of the study lies in the fact that restructuring of the equipment supply chain is analyzed as a set of decisions with different economic significance for the program. The practical significance of the study is associated with the possibility of using the proposed approach in the future to identify priority directions for supply chain restructuring, determine the sequence of changes in the component supply system, and assess their significance for the implementation of domestic aviation programs, in particular the MC-21-310 program.
supply chain restructuring, production rhythm, interplant cooperation, maintenance support, components, serial production, economic consequences, domestic aircraft industry, MC-21-310 program
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