---
title: "GM1 ADR-DSN.M.665 Runway lead-in lighting systems — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Applicability: A runway lead-in lighting system may be provided for purposes of noise abatement routing."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-m-visual-aids-for-navigation-lights/gm1-adr-dsn-m-665"
---

# GM1 ADR-DSN.M.665 Runway lead-in lighting systems

Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

GM Guidance material

## GM1 ADR-DSN.M.665 Runway lead-in lighting systems

(a) Applicability: A [runway](https://avioverse.aero/glossary/easa/runway) lead-in lighting system may be provided for purposes of noise abatement routing.

(b) Characteristics:

(1) Where practicable, the flashing lights in each group should flash in sequence towards the runway.

(2) The path of the system may be segmented, straight, or a combination thereof, as required.

(3) The starting point of the path may be at a point within easy visual range of a final approach fix.

GM · GM1 ADR-DSN.M.665 — Regulation (EU) No 139/2014 · ED Decision 2014/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER M — VISUAL AIDS FOR NAVIGATION (LIGHTS)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-m-visual-aids-for-navigation-lights)

Consolidated from the EASA Easy Access Rules (revision 13 Mar 2026, 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.