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Long Haul

ขั้นตอนดริฟท์ดาวน์

A contingency descent profile followed after an engine failure at cruise altitude to achieve the aircraft’s new single-engine ceiling while maintaining obstacle clearance.

Quick answer: A contingency descent profile followed after an engine failure at cruise altitude to achieve the aircraft’s new single-engine ceiling while maintaining obstacle clearance.

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Quick answer

A contingency descent profile followed after an engine failure at cruise altitude to achieve the aircraft’s new single-engine ceiling while maintaining obstacle clearance.

Why it matters

ขั้นตอนดริฟท์ดาวน์ matters because it supports clear communication in Long Haul contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Editorial context

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Questions and answers

Questions and answers

What is ขั้นตอนดริฟท์ดาวน์?

In this glossary, ขั้นตอนดริฟท์ดาวน์ refers to: A contingency descent profile followed after an engine failure at cruise altitude to achieve the aircraft’s new single-engine ceiling while maintaining obstacle clearance.

How is ขั้นตอนดริฟท์ดาวน์ used in aviation?

In aviation communication, this term appears in contexts such as: "เมย์เดย์ เครื่องยนต์หนึ่งขัดข้อง เริ่มขั้นตอนดริฟท์ดาวน์จากระดับ 370 เพื่อคงระยะห่างสิ่งกีดขวางจนถึงระดับดริฟท์ดาวน์"

Why does ขั้นตอนดริฟท์ดาวน์ matter in aviation?

ขั้นตอนดริฟท์ดาวน์ matters because it supports clear communication in Long Haul contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Who uses ขั้นตอนดริฟท์ดาวน์?

ขั้นตอนดริฟท์ดาวน์ is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does ขั้นตอนดริฟท์ดาวน์ belong to?

In this glossary, ขั้นตอนดริฟท์ดาวน์ is grouped under Long Haul. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.

Definition

A contingency descent profile followed after an engine failure at cruise altitude to achieve the aircraft’s new single-engine ceiling while maintaining obstacle clearance.

Operational example

Mayday, one engine out, commencing Drift Down Procedure from flight level three-seven-zero to maintain obstacle clearance until drift-down level reached.

Localized term

ขั้นตอนดริฟท์ดาวน์

Localized example

เมย์เดย์ เครื่องยนต์หนึ่งขัดข้อง เริ่มขั้นตอนดริฟท์ดาวน์จากระดับ 370 เพื่อคงระยะห่างสิ่งกีดขวางจนถึงระดับดริฟท์ดาวน์

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Long Haul

Exam relevance

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

Target audience

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related terms

Use the related links below to continue through connected aviation terminology.

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