---
title: "Threat — EASA Definition · Avioverse"
description: "FCL.010, Regulation (EU) No 1178/2011: \"Threat\" means events or errors which occur beyond the influence of the flight crew, increase operational…"
url: "https://avioverse.aero/glossary/easa/threat"
---

# Threat

EASA defines “Threat” in 2 regulations, worded for each regulation's scope. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> "Threat" means events or errors which occur beyond the influence of the flight crew, increase operational complexity and which must be managed to maintain the margin of safety.

FCL.010 · Aircrew · Regulation (EU) No 1178/2011 · Easy Access Rules, 25 Nov 2025 revision · [Read FCL.010](https://avioverse.aero/regulations/easa/aircrew/part-fcl/subpart-a#fcl-010)

> ‘threat’ means a potential violation of information security which exists when there is an entity, circumstance, action or event that could cause harm;

Article 3 · Information Security (Part-IS) · Regulations (EU) 2023/203 and 2022/1645 · Easy Access Rules, 5 Dec 2025 revision · [Read Article 3](https://avioverse.aero/regulations/easa/part-is/implementing-regulation-eu-2023-203/cover-regulation-to-implementing-regulation-eu#article-3)

## Defined in the same article

- [Accessible](https://avioverse.aero/glossary/easa/accessible)
- [aerobatic flight](https://avioverse.aero/glossary/easa/aerobatic-flight)
- [aeroplane](https://avioverse.aero/glossary/easa/aeroplane)
- [Aeroplane required to be operated with a co-pilot](https://avioverse.aero/glossary/easa/aeroplane-required-to-be-operated-with-a-co-pilot)
- [Aeroplane upset prevention and recovery training](https://avioverse.aero/glossary/easa/aeroplane-upset-prevention-and-recovery-training)
- [aircraft](https://avioverse.aero/glossary/easa/aircraft)
- [Airmanship](https://avioverse.aero/glossary/easa/airmanship)
- [Airship](https://avioverse.aero/glossary/easa/airship)