---
title: "SERA.10001 Application — ANNEX: Rules of the Air, SERA · Avioverse"
description: "Alerting service shall be provided by the air traffic services units:"
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-10/sera-10001"
---

# SERA.10001 Application

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

IR Implementing rule

## SERA.10001 Application

(a) [Alerting service](https://avioverse.aero/glossary/easa/alerting-service) shall be provided by the [air traffic](https://avioverse.aero/glossary/easa/air-traffic) services units:

(1) for all [aircraft](https://avioverse.aero/glossary/easa/aircraft) provided with [air traffic control service](https://avioverse.aero/glossary/easa/air-traffic-control-service);

(2) in so far as practicable, to all other aircraft having filed a [flight plan](https://avioverse.aero/glossary/easa/flight-plan) or otherwise known to the air traffic services; and

(3) to any aircraft known or believed to be the subject of unlawful interference.

(b) Unless otherwise prescribed by the [competent authority](https://avioverse.aero/glossary/easa/competent-authority), aircraft equipped with suitable two-way radio-communications shall report during the period 20 to 40 minutes following the time of the last contact, whatever the purpose of such contact, merely to indicate that the flight is progressing according to plan, such report to comprise identification of the aircraft and the words ‘Operations normal’.

(c) The ‘Operations normal’ message shall be transmitted air-ground to an appropriate ATS unit.

IR · SERA.10001 — Regulation (EU) No 923/2012 · Regulation (EU) 2016/1185 · SERA Easy Access Rules · EAR revision 26 Aug 2025

GM Guidance material

## GM1 SERA.10001 Application

[ALERTING SERVICE](https://avioverse.aero/glossary/easa/alerting-service) — PROMULGATION OF NOTAMs FOR SEARCH AND RESCUE OPERATIONS

It may be advisable, in case of a search and rescue operation of a substantial duration, to promulgate by NOTAM the lateral and vertical limits of the area of a search and rescue action, and to warn [aircraft](https://avioverse.aero/glossary/easa/aircraft) not engaged in actual search and rescue operations and not controlled by [air traffic control service](https://avioverse.aero/glossary/easa/air-traffic-control-service) to avoid such areas unless otherwise authorised by the appropriate [air traffic](https://avioverse.aero/glossary/easa/air-traffic) services unit.

GM · GM1 SERA.10001 — Regulation (EU) No 923/2012 · ED Decision 2024/007/R · SERA Easy Access Rules · EAR revision 26 Aug 2025

GM Guidance material

## GM1 SERA.10001(b) Application

The absence of an ‘operations normal’ message does not constitute a situation of urgency. In the absence of such a report, ATS should endeavour to contact the [aircraft](https://avioverse.aero/glossary/easa/aircraft) on available frequencies. A failure to contact the aircraft could lead to any type of measure including the declaration of ‘uncertainty phase’.

GM · GM1 SERA.10001(b) — Regulation (EU) No 923/2012 · ED Decision 2016/023/R · SERA Easy Access Rules · EAR revision 26 Aug 2025

[All rules in SECTION 10 Alerting service](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-10)

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.