---
title: "GM1 ADR-DSN.S.890 Monitoring — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "For a runway meant for use in runway visual range conditions less than a value of 550 m, the minimum serviceability level of any element of the lighting…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-s-electrical-systems/gm1-adr-dsn-s-890"
---

# GM1 ADR-DSN.S.890 Monitoring

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.S.890 Monitoring

(a) For a [runway](https://avioverse.aero/glossary/easa/runway) meant for use in runway visual range conditions less than a value of 550 m, the minimum serviceability level of any element of the lighting system detailed in Table S-1, below which operations should not continue, is set up by the [competent authority](https://avioverse.aero/glossary/easa/competent-authority).

(b) Additional guidance on air traffic control interface and [visual aids](https://avioverse.aero/glossary/easa/visual-aids) monitoring is given in ICAO Doc 9157, [Aerodrome](https://avioverse.aero/glossary/easa/aerodrome) Design Manual, Part 5, Electrical Systems.

\[Issue: ADR-DSN/3]

GM · GM1 ADR-DSN.S.890 — Regulation (EU) No 139/2014 · ED Decision 2016/027/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER S — ELECTRICAL SYSTEMS](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-s-electrical-systems)

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.