---
title: "GM27 Annex I Definitions — ANNEX I – Definitions, Air OPS · Avioverse"
description: "FLIGHT RECORDER A flight recorder may be crash-protected or lightweight and may be deployable or not."
url: "https://avioverse.aero/regulations/easa/air-ops/definitions/powers-and-recitals/gm27-annex-i-definitions"
---

# GM27 Annex I Definitions

ANNEX I – Definitions · Regulation (EU) No 965/2012 · EAR revision 27 Mar 2026

Official sources: [EASA Easy Access Rules (opens in a new tab)](https://www.easa.europa.eu/en/document-library/easy-access-rules/easy-access-rules-air-operations) · [EUR-Lex 2012/965 (opens in a new tab)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32012R0965)

GM Guidance material

## GM27 Annex I Definitions

[FLIGHT RECORDER](https://avioverse.aero/glossary/easa/flight-recorder)

A flight recorder may be crash-protected or lightweight and may be deployable or not. Crash-protected flight recorders are capable of withstanding very severe crash conditions such as those encountered during some accidents of large aeroplanes and large helicopters. Crash-protected flight recorders comprise one or more of the following systems: a [flight data recorder (FDR)](https://avioverse.aero/glossary/easa/flight-data-recorder), a [cockpit voice recorder (CVR)](https://avioverse.aero/glossary/easa/cockpit-voice-recorder), an airborne image recorder (AIR), or a data link recorder (DLR). Lightweight flight recorders are usually designed to meet less demanding requirements than crash-protected flight recorders, which allows them to be lighter. A non-deployable flight recorder is permanently attached to the [aircraft](https://avioverse.aero/glossary/easa/aircraft). A deployable flight recorder includes a part that is capable of automatically deploying from the aircraft.

GM — Regulation (EU) No 965/2012 · ED Decision 2021/005/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

[All rules in Powers and recitals](https://avioverse.aero/regulations/easa/air-ops/definitions/powers-and-recitals)

Consolidated from the EASA Easy Access Rules (revision 27 Mar 2026, extracted 2 Nov 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.