Termify logo Protermify Aviation Aviation English glossary built for pilots, ATC teams, cabin crew and aviation students.

Flight Phase

ドリフトダウン

A procedure for descending to a safe altitude following engine failure at cruise. Aircraft descends along a planned path ensuring obstacle clearance and safe flight.

Quick answer: A procedure for descending to a safe altitude following engine failure at cruise. Aircraft descends along a planned path ensuring obstacle clearance and safe flight.

This term page is part of the Protermify Aviation glossary and is published as static HTML for fast indexing and clear language coverage.

Languages

ArabicDeutschEnglishEspanolFrancaisHindiBahasa IndonesiaItalianoJapanesePortuguesRusskiyThaiTurkceVietnameseZhongwen

Quick answer

A procedure for descending to a safe altitude following engine failure at cruise. Aircraft descends along a planned path ensuring obstacle clearance and safe flight.

Why it matters

ドリフトダウン matters because it supports clear communication in Flight Phase 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

This page is rendered as static HTML from source-backed terminology data so search engines and AI systems can parse the content without client-side code.

Questions and answers

Questions and answers

What is ドリフトダウン?

In this glossary, ドリフトダウン refers to: A procedure for descending to a safe altitude following engine failure at cruise. Aircraft descends along a planned path ensuring obstacle clearance and safe flight.

How is ドリフトダウン used in aviation?

In aviation communication, this term appears in contexts such as: "エンジン故障により、障害物回避のためFL350からドリフトダウンを開始します。"

Why does ドリフトダウン matter in aviation?

ドリフトダウン matters because it supports clear communication in Flight Phase 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 ドリフトダウン?

ドリフトダウン is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does ドリフトダウン belong to?

In this glossary, ドリフトダウン is grouped under Flight Phase. 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 procedure for descending to a safe altitude following engine failure at cruise. Aircraft descends along a planned path ensuring obstacle clearance and safe flight.

Operational example

Due engine failure, we are initiating drift down from flight level three five zero to maintain obstacle clearance.

Localized term

ドリフトダウン

Localized example

エンジン故障により、障害物回避のためFL350からドリフトダウンを開始します。

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Flight Phase

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.

Back to glossary