防护有效时间 是什么？
防护有效时间 The estimated time anti-icing or de-icing fluid will prevent formation of frost, ice, or snow on the aircraft's critical surfaces under current weather conditions.
Source: ICAO Doc 9432, FAA PCG
How is “防护有效时间” Used in Practice?
地面，确认除冰液的防护有效时间在起飞前仍然有效。
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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防护有效时间 是什么？
The estimated time anti-icing or de-icing fluid will prevent formation of frost, ice, or snow on the aircraft's critical surfaces under current weather conditions.
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