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特别提醒：此版块涉及航空体系，各位在分享学习资料，互相交流探讨的时候，务必遵守国家法律，不得泄密！不得泄密！不得泄密！！！
ECSS-Q-HB-70-23A – Materials, mechanical parts and processes obsolescence management handbook (20 November 2017)
Scope
This Handbook provides guidelines to manage obsolescence of Materials, Mechanical Parts and Processes (in-house and sub-contracted). It is useful for any actor of the European Space sector. It covers Materials, Mechanical Parts and Processes (MMPP) used in flight hardware as well as ground support equipment (including test systems) and materials or tools used during process (not in the final product) and skills (know-how). It is not within the scope of this Handbook to address EEE components and software. This document describes the general causes of obsolescences and introduces the concepts of proactive and reactive obsolescence management, depending of the program phase.
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