Aviation English
Flight Phase

乱気流とは？

乱気流 Irregular motion of the air resulting from eddies and vertical currents, often causing bumpiness or abrupt altitude changes for aircraft. Pilots report turbulence to ATC for safety.

Source: ICAO Doc 9432, FAA PCG

How is “乱気流” Used in Practice?

フライトレベル360から380まで中程度の乱気流を報告。前方の激しい乱気流を避けるため降下を要求。

Certification Exam Relevance

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

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

シグニフィカントウェザー図晴天乱気流ジェット気流コア積乱雲

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Frequently Asked Questions

乱気流とは？

Irregular motion of the air resulting from eddies and vertical currents, often causing bumpiness or abrupt altitude changes for aircraft. Pilots report turbulence to ATC for safety.

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