---
title: "GM1 to Appendix 5 (2 — Section 3) DETAILED REPORTING INSTRUCTIONS — ANNEX: Rules of the Air, SERA · Avioverse"
description: "PHENOMENON PROMPTING A SPECIAL AIR-REPORT - VOLCANIC ASH CLOUD, PRE-ERUPTION VOLCANIC ACTIVITY, OR VOLCANIC ERUPTION In case of volcanic ash cloud…"
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5/gm1-to-appendix-5-2-section-3-detailed-reporting-instructions"
---

# GM1 to Appendix 5 (2 — Section 3) DETAILED REPORTING INSTRUCTIONS

ANNEX: Rules of the Air · Regulation (EU) No 923/2012 · EAR revision 26 Aug 2025

GM Guidance material

## GM1 to Appendix 5 (2 — Section 3) DETAILED REPORTING INSTRUCTIONS

PHENOMENON PROMPTING A SPECIAL [AIR-REPORT](https://avioverse.aero/glossary/easa/air-report) - VOLCANIC ASH CLOUD, PRE-ERUPTION VOLCANIC ACTIVITY, OR VOLCANIC ERUPTION In case of volcanic ash cloud, pre-eruption volcanic activity, or volcanic eruption, in accordance with SERA.12005, a post-flight report should also be made on the special air-report of volcanic activity form (Model VAR).

GM — Regulation (EU) No 923/2012 · ED Decision 2016/023/R · SERA Easy Access Rules · EAR revision 26 Aug 2025

[All rules in Appendix 5 Technical specifications related to aircraft observations and reports by voice communications](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5)

Consolidated from the EASA Easy Access Rules (revision 26 Aug 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.