---
title: "AWO.B.CATI.102 CS AWO.B.CATI.102 Terminology — CS-AWO · Avioverse"
description: "xLS (landing system) An xLS (landing system) is a navigation means (facilities external to the aircraft) that provides to the crew and the aircraft…"
url: "https://avioverse.aero/regulations/easa/cs-awo/subpart-b/awo-b-cati-102"
---

# AWO.B.CATI.102 CS AWO.B.CATI.102 Terminology

All Weather Operations (CS-AWO) · CS-AWO · EAR revision 14 Aug 2026

IR Implementing rule

## AWO.B.CATI.102 CS AWO.B.CATI.102 Terminology

xLS (landing system)

An xLS (landing system) is a navigation means (facilities external to the aircraft) that provides to the crew and the aircraft systems deviations from ideal approach and landing lateral and vertical trajectories. The combination of navigation means, crew and aircraft system has been demonstrated to provide the required minimum performance for the intended decision altitude/height (DA/H) or no decision height (DH). If required, the xLS can provide relevant distance information. The xLS can also apply to low-visibility take-offs.

\[Issue: CS-AWO/2]

ED Decision 2022/007/R

IR · AWO.B.CATI.102 — CS-AWO · CS-AWO Easy Access Rules · EAR revision 14 Aug 2026

AMC Acceptable means of compliance

## AMC AWO.B.CATI.102 Terminology

xLS (landing system)

Previously, landing systems were constrained to instrument landing systems (ILSs); however, the term 'xLS' now includes identified means suc h as microwave landing system (MLS), ground-based augmented (GBAS) landing system, space-based augmented landing system (SBAS/LPV) or any other system (or combination of systems).

\[Issue: CS-AWO/2]

ED Decision 2022/007/R

SECTION 2 -AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR OPERATIONS WITH DECISION HEIGHTS (DHs) BELOW 60 M (200 FT) AND DOWN TO 45 M (150 FT) -SPECIAL AUTHORISATION CATEGORY I (SA CAT I) OPERATIONS

SECTION 2 -AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR OPERATIONS WITH DECISION HEIGHTS (DHS) BELOW 60 M (200 FT) AND DOWN TO 45 M (150 FT) -SPECIAL AUTHORISATION CATEGORY I (SA CAT I) OPERATIONS

GENERAL

AMC — CS-AWO · CS-AWO Easy Access Rules · EAR revision 14 Aug 2026

[All rules in SUBPART B -APPROACH AND LANDING](https://avioverse.aero/regulations/easa/cs-awo/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 14 Aug 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.