Aviation English
Aircraft Systems

备用起落架放下 是什么？

备用起落架放下 A backup method to deploy the landing gear using gravity, hydraulic, or manual means if the normal extension system fails.

Source: ICAO Doc 9432, FAA PCG

How is “备用起落架放下” Used in Practice?

因液压故障使用备用起落架放下，报告起落架放下并锁定。

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

备用起落架放下 是什么？

A backup method to deploy the landing gear using gravity, hydraulic, or manual means if the normal extension system fails.

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