---
title: "SERA.15035 Intentional shutdown of CPDLC system — ANNEX: Rules of the Air, SERA · Avioverse"
description: "When a system shutdown of the communications network or the CPDLC ground system is planned, a NOTAM shall be published to inform all affected parties of…"
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-15/sera-15035"
---

# SERA.15035 Intentional shutdown of CPDLC system

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

IR Implementing rule

## SERA.15035 Intentional shutdown of CPDLC system

(a) When a system shutdown of the communications network or the CPDLC ground system is planned, a NOTAM shall be published to inform all affected parties of the shutdown period and, if necessary, the details of the voice communication frequencies to be used.

(b) [Aircraft](https://avioverse.aero/glossary/easa/aircraft) in communication with the ATC units shall be informed by voice or CPDLC of any imminent loss of the CPDLC service.

IR · SERA.15035 — Regulation (EU) No 923/2012 · Regulation (EU) 2023/1772 · SERA Easy Access Rules · EAR revision 26 Aug 2025

[All rules in SECTION 15 Controller-pilot data link communication (CPDLC) procedures](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-15)

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.