延長有効時間とは？
延長有効時間 An officially authorized increase in the maximum allowable holdover time beyond standard tables, based on improved weather or de-icing conditions, to extend aircraft protection before takeoff.
Source: ICAO Doc 9432, FAA PCG
How is “延長有効時間” Used in Practice?
タワー、除氷後に雪の強度が減少したため延長有効時間の確認を要請します。
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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延長有効時間とは？
An officially authorized increase in the maximum allowable holdover time beyond standard tables, based on improved weather or de-icing conditions, to extend aircraft protection before takeoff.
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