---
title: "Appendix 5 Technical specifications related to aircraft observations and reports by voice communications — ANNEX: Rules of the Air, SERA — rule index · Avioverse"
description: "Appendix 5 Technical specifications related to aircraft observations and reports by voice communications (6 paragraphs), Regulation (EU) No 923/2012.…"
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5"
---

# Appendix 5 Technical specifications related to aircraft observations and reports by voice communications

ANNEX: Rules of the Air · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012

1. ## [GM1 to Appendix 5 (2 — Section 1) DETAILED REPORTING INSTRUCTIONS](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5/gm1-to-appendix-5-2-section-1-detailed-reporting-instructions)

   POSITION Example: ‘4620North07805West’, ‘4620North07800West’, ‘4600North07800West’, LN (‘LIMA NOVEMBER’), ‘MAY’, ‘HADDY’ or ‘DUB 180 DEGREES 40 MILES’

2. ## [GM1 to Appendix 5 (2 — Section 1) DETAILED REPORTING INSTRUCTIONS](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5/gm1-to-appendix-5-2-section-1-detailed-reporting-instructions-2)

   FLIGHT LEVEL OR ALTITUDE Example: ‘FLIGHT LEVEL 310’

3. ## [GM1 to Appendix 5 (2 — Section 3) DETAILED REPORTING INSTRUCTIONS](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5/gm1-to-appendix-5-2-section-3-detailed-reporting-instructions)

   PHENOMENON PROMPTING A SPECIAL AIR-REPORT - VOLCANIC ASH CLOUD, PRE-ERUPTION VOLCANIC ACTIVITY, OR VOLCANIC ERUPTION In case of volcanic ash cloud…

4. ## [GM1 to Appendix 5 (3) FORWARDING OF METEOROLOGICAL INFORMATION RECEIVED BY VOICE COMMUNICATIONS](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5/gm1-to-appendix-5-3-forwarding-of-meteorological-information-received-by-voice)

   AIRCRAFT IDENTIFICATION Example: ‘New Zealand 103’ as ‘ANZ103’

5. ## [GM1 to Appendix 5 (3 — Section 1) FORWARDING OF METEOROLOGICAL INFORMATION RECEIVED BY VOICE COMMUNICATIONS](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5/gm1-to-appendix-5-3-section-1-forwarding-of-meteorological-information-received)

   POSITION Example: ‘4620N07805W’, ‘4620N078W’, ‘46N078W’, ‘LN’, ‘MAY’, ‘HADDY’ or ‘DUB180040’.

6. ## [GM1 to Appendix 5 (1.1.4 and 2.1) SPECIAL AIR-REPORTS](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-5/gm1-to-appendix-5-1-1-4-and-2-1-special-air-reports)

   Examples of special air reports by voice communication AS SPOKEN IN RADIOTELEPHONY AS RECORDED BY THE AIR TRAFFIC SERVICES UNIT AND FORWARDED TO THE…

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.

Share [LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Fsera%2Fannex-rules-of-the-air%2Fappendix-5)[X](https://twitter.com/intent/tweet?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Fsera%2Fannex-rules-of-the-air%2Fappendix-5\&text=Appendix%205%20Technical%20specifications%20related%20to%20aircraft%20observations%20and%20reports%20by%20voice%20communications%20%E2%80%94%20SERA)