MEL and CDL MEL and CDL

备用惯性空数基准单元

Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.

Quick answer: Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.

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Quick answer

Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.

Why it matters

备用惯性空数基准单元 matters because it supports clear communication in MEL and CDL MEL and CDL 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 备用惯性空数基准单元?

In this glossary, 备用惯性空数基准单元 refers to: Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.

How is 备用惯性空数基准单元 used in aviation?

In aviation communication, this term appears in contexts such as: "进近,SKY521,转用备用ADIRU,精度降低,请求终端向导。"

Why does 备用惯性空数基准单元 matter in aviation?

备用惯性空数基准单元 matters because it supports clear communication in MEL and CDL MEL and CDL 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 备用惯性空数基准单元?

备用惯性空数基准单元 is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does 备用惯性空数基准单元 belong to?

In this glossary, 备用惯性空数基准单元 is grouped under MEL and CDL MEL and CDL. 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

Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.

Operational example

Approach, SKY five two one, now on standby air-data inertial reference unit, navigation accuracy reduced, requesting vectors to final.

Localized term

备用惯性空数基准单元

Localized example

进近,SKY521,转用备用ADIRU,精度降低,请求终端向导。

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

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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