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This paper explains the principle of APU (Auxiliary Power Unit) corrosion from the APU engine and corrosion mechanism. At the same time, the general anti-corrosion design of APU is introduced, explaining that currently anti-corrosion is usually ensured through early anti-corrosion design and subsequent storage programs. This paper provides the impact of corrosion on APU and subsequent recommended measures when APU storage programs are not executed as required. Finally, a specific case study of a flight route is presented.

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Research on APU Anti-corrosion Design and Storage

  • 会议论文

  • 发表日期：

    2026年

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  • Ma Yang,
  • Li Yanshuang,
  • Gu Cheng,
  • Xue Weiwei

摘要

This paper explains the principle of APU (Auxiliary Power Unit) corrosion from the APU engine and corrosion mechanism. At the same time, the general anti-corrosion design of APU is introduced, explaining that currently anti-corrosion is usually ensured through early anti-corrosion design and subsequent storage programs. This paper provides the impact of corrosion on APU and subsequent recommended measures when APU storage programs are not executed as required. Finally, a specific case study of a flight route is presented.