Introduction. The article examines the PLM environment as a managerial infrastructure for digital innovation in an aircraft manufacturing holding. It is argued that under technological sovereignty, innovation management in civil aircraft manufacturing cannot be limited to project control of R&D budgets and schedules. Goal. The study aims to reveal the PLM environment as an infrastructure for managing digital innovations in an aircraft manufacturing holding and to determine its importance for technological sovereignty of the industry. Materials and methods. The research is carried out as a conceptual and analytical article on the management of high-tech industrial systems. The methodological basis consists of a systematic approach, institutional analysis, innovation management theory, the concept of digital assets and the product lifecycle approach. The results and their discussion. The key object of management becomes the digital product lifecycle, including requirements, configurations, engineering changes, digital models, production data, certification artifacts, and operational feedback. The paper shows that the PLM environment is transformed from an engineering information system into the institutional core of the innovation architecture of a holding, ensuring end-to-end traceability, reuse of engineering knowledge, reduction of duplicated R&D, and integration of participants in aircraft manufacturing cooperation. Based on the international experience of Airbus, Dassault Systèmes, Rolls-Royce, GE Aerospace, and the Russian experience of UAC and Rostec, the article identifies PLM managerial functions in the digital transformation of aircraft manufacturing. Special attention is paid to the relationship between PLM, digital twins, predictive maintenance, generative artificial intelligence, and technological sovereignty. Conclusion. The article concludes that PLM maturity is becoming one of the key factors in the innovation performance of an aircraft manufacturing holding.