Emergencies

Mayday

International radiotelephony distress signal used to indicate a grave and imminent threat requiring immediate assistance.

Quick answer: International radiotelephony distress signal used to indicate a grave and imminent threat requiring immediate assistance.

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Languages

Quick answer

International radiotelephony distress signal used to indicate a grave and imminent threat requiring immediate assistance.

Why it matters

Mayday matters because it supports clear communication in Emergencies 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 Mayday?

In this glossary, Mayday refers to: International radiotelephony distress signal used to indicate a grave and imminent threat requiring immediate assistance.

How is Mayday used in aviation?

In aviation communication, this term appears in contexts such as: "Mayday, Mayday, Mayday,这里是Delta 一三四,发动机故障,请求紧急着陆引导。"

Why does Mayday matter in aviation?

Mayday matters because it supports clear communication in Emergencies 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 Mayday?

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

What category does Mayday belong to?

In this glossary, Mayday is grouped under Emergencies. 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

International radiotelephony distress signal used to indicate a grave and imminent threat requiring immediate assistance.

Operational example

Mayday, Mayday, Mayday, this is Delta One Three Four, engine failure, requesting immediate vectors for emergency landing.

Localized term

Mayday

Localized example

Mayday, Mayday, Mayday,这里是Delta 一三四,发动机故障,请求紧急着陆引导。

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Emergencies

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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