Aviation English
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代替手順必要とは?

代替手順必要 Standard operating sequence unavailable; crew must follow officially published alternate or contingency checklist.

Source: ICAO Doc 9432, FAA PCG

How is “代替手順必要” Used in Practice?

タワー、ARROW86、滑走路閉鎖のためC誘導路代替出発が必要。

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

代替手順必要とは?

Standard operating sequence unavailable; crew must follow officially published alternate or contingency checklist.

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