Emergencies

应答机代码7700

The ATC transponder code universally set to indicate a general emergency, alerting controllers to an onboard emergency situation.

Quick answer: The ATC transponder code universally set to indicate a general emergency, alerting controllers to an onboard emergency situation.

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Quick answer

The ATC transponder code universally set to indicate a general emergency, alerting controllers to an onboard emergency situation.

Why it matters

应答机代码7700 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 应答机代码7700?

In this glossary, 应答机代码7700 refers to: The ATC transponder code universally set to indicate a general emergency, alerting controllers to an onboard emergency situation.

How is 应答机代码7700 used in aviation?

In aviation communication, this term appears in contexts such as: "机组将应答机设置为7700代码,以声明紧急情况并提醒ATC。"

Why does 应答机代码7700 matter in aviation?

应答机代码7700 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 应答机代码7700?

应答机代码7700 is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does 应答机代码7700 belong to?

In this glossary, 应答机代码7700 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

The ATC transponder code universally set to indicate a general emergency, alerting controllers to an onboard emergency situation.

Operational example

The crew set the transponder to code 7700 to declare an emergency and alert ATC.

Localized term

应答机代码7700

Localized example

机组将应答机设置为7700代码,以声明紧急情况并提醒ATC。

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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