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Long Haul

Thủ tục trôi xuống

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

Thủ tục trôi xuống 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 Thủ tục trôi xuống?

In this glossary, Thủ tục trôi xuống 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 Thủ tục trôi xuống used in aviation?

In aviation communication, this term appears in contexts such as: "Mayday, một động cơ hỏng, bắt đầu Thủ tục trôi xuống từ mực bay 370 để duy trì khoảng cách chướng ngại cho đến khi đạt mức trôi xuống."

Why does Thủ tục trôi xuống matter in aviation?

Thủ tục trôi xuống 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 Thủ tục trôi xuống?

Thủ tục trôi xuống is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does Thủ tục trôi xuống belong to?

In this glossary, Thủ tục trôi xuống 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

Thủ tục trôi xuống

Localized example

Mayday, một động cơ hỏng, bắt đầu Thủ tục trôi xuống từ mực bay 370 để duy trì khoảng cách chướng ngại cho đến khi đạt mức trôi xuống.

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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