---
title: "SERA.15001 Data link initiation and data link initiation failure — ANNEX: Rules of the Air, SERA · Avioverse"
description: "The logon address associated with an air traffic services unit shall be published in the national aeronautical information publications (AIPs)."
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/section-15/sera-15001"
---

# SERA.15001 Data link initiation and data link initiation failure

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

IR Implementing rule

## SERA.15001 Data link initiation and data link initiation failure

(a) The logon address associated with an [air traffic](https://avioverse.aero/glossary/easa/air-traffic) services unit shall be published in the national aeronautical information publications (AIPs).

(b) Upon receipt of a valid data link initiation request from an [aircraft](https://avioverse.aero/glossary/easa/aircraft) approaching or within the data link service area, the air traffic services unit shall accept the request and, if able to correlate it with a [flight plan](https://avioverse.aero/glossary/easa/flight-plan), shall establish a connection with the aircraft.

(c) The air traffic services provider shall establish procedures to resolve, as soon as practicable, data link initiation failures.

(d) The aircraft operator shall establish procedures to resolve, as soon as practicable, data link initiation failures.

IR · SERA.15001 — 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.