---
title: "SERA.8035 Communications — ANNEX: Rules of the Air, SERA · Avioverse"
description: "An aircraft operated as a controlled flight shall maintain continuous air-ground voice communication watch on the appropriate communication channel of…"
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-8/sera-8035"
---

# SERA.8035 Communications

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

IR Implementing rule

## SERA.8035 Communications

(a) An [aircraft](https://avioverse.aero/glossary/easa/aircraft) operated as a [controlled flight](https://avioverse.aero/glossary/easa/controlled-flight) shall maintain continuous air-ground voice communication watch on the appropriate communication channel of, and establish two-way communication as necessary with, the appropriate [air traffic control unit](https://avioverse.aero/glossary/easa/air-traffic-control-unit), except as may be prescribed by the relevant ANSP in respect of aircraft forming part of [aerodrome traffic](https://avioverse.aero/glossary/easa/aerodrome-traffic) at a [controlled aerodrome](https://avioverse.aero/glossary/easa/controlled-aerodrome).

(1) The requirement for an aircraft to maintain an air-ground voice communication watch shall remain in effect when CPDLC has been established.

(b) If a communication failure precludes compliance with point (a), the procedures on communication failures shall be followed, as specified in SERA.14083.

IR · SERA.8035 — Regulation (EU) No 923/2012 · Regulation (EU) 2024/404 · SERA Easy Access Rules · EAR revision 26 Aug 2025

GM Guidance material

## GM1 SERA.8035(a) Communications

GENERAL

(a) In a HF environment, SELCAL or similar automatic signalling devices satisfy the requirement to maintain an air-ground voice communication watch.

(b) An [aircraft](https://avioverse.aero/glossary/easa/aircraft) may be permitted to communicate temporarily with a control unit other than the unit controlling the aircraft.

GM · GM1 SERA.8035(a) — Regulation (EU) No 923/2012 · ED Decision 2013/013/R · SERA Easy Access Rules · EAR revision 26 Aug 2025

AMC Acceptable means of compliance

## AMC1 SERA.8035 Communications

ESTABLISHMENT OF PILOT–CONTROLLER COMMUNICATIONS

Direct pilot–controller communications should be established prior to the provision of ATS surveillance services unless special circumstances, such as emergencies, dictate otherwise.

AMC · AMC1 SERA.8035 — Regulation (EU) No 923/2012 · ED Decision 2016/023/R · SERA Easy Access Rules · EAR revision 26 Aug 2025

AMC Acceptable means of compliance

## AMC2 SERA.8035 Communications

ACKNOWLEDGEMENT OF MESSAGES

(a) When a CPDLC emergency message is received, the controller shall acknowledge receipt of the message by the most efficient means available.

(b) Except as provided by (a), when a controller or pilot communicates via CPDLC, the response should be via CPDLC. When a controller or pilot communicates via voice, the response should be via voice.

AMC · AMC2 SERA.8035 — Regulation (EU) No 923/2012 · ED Decision 2016/023/R · SERA Easy Access Rules · EAR revision 26 Aug 2025

[All rules in SECTION 8 Air traffic control service](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-8)

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.