---
title: "Emergency — aviation glossary — OnlyPlanes"
description: "A situation requiring immediate action to protect people and the aircraft."
canonical_url: "https://onlyplanes.ru/en/learn/emergency"
locale: en
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  "og:title": "Emergency — aviation glossary"
---

> Index of every page on this site: [llms.txt](https://onlyplanes.ru/llms.txt)

Safety

# Emergency

TERM · Safety

At a glance

## Meaning of Emergency

A situation requiring immediate action to protect people and the aircraft.

### More about Emergency

An in-flight emergency can involve fire, a serious system failure, critically low fuel or another immediate threat. Pilots follow the procedures for their aircraft and tell air traffic control what assistance they need.

MAYDAY indicates grave and imminent danger. PAN PAN is used for urgency without that same degree of danger.

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