MEL and CDL MEL and CDL

ADIRU en espera

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

ADIRU en espera 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 ADIRU en espera?

In this glossary, ADIRU en espera refers to: Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.

How is ADIRU en espera used in aviation?

In aviation communication, this term appears in contexts such as: "Aproximación, SKY 521, usando ADIRU en espera, precisión reducida; solicitamos vectores a final."

Why does ADIRU en espera matter in aviation?

ADIRU en espera 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 ADIRU en espera?

ADIRU en espera is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does ADIRU en espera belong to?

In this glossary, ADIRU en espera 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

ADIRU en espera

Localized example

Aproximación, SKY 521, usando ADIRU en espera, precisión reducida; solicitamos vectores a final.

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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