---
title: "CS-E 230 De-Icing and Anti-Icing Precautions — CS-E · Avioverse"
description: "The design of the Engine induction system must be such as to minimise the risk of ice formation adversely affecting the functioning of the Engine and, if…"
url: "https://avioverse.aero/regulations/easa/cs-e/subpart-b/cs-e-230-de-icing-and-anti-icing-precautions"
---

# CS-E 230 De-Icing and Anti-Icing Precautions

Engines (CS-E) · CS-E · EAR revision 7 Dec 2023

IR Implementing rule

## CS-E 230 De-Icing and Anti-Icing Precautions

(a) The design of the Engine induction system must be such as to minimise the risk of ice formation adversely affecting the functioning of the Engine and, if necessary, must include provision for the use of a means for ice prevention

(b) Where necessary, provision must be made for the fitting of an induction thermometer or ice indicator, as appropriate for the control of the particular system.

IR — CS-E · ED Decision 2003/9/RM · CS-E Easy Access Rules · EAR revision 7 Dec 2023

[All rules in SUBPART B — PISTON ENGINES: DESIGN AND CONSTRUCTION](https://avioverse.aero/regulations/easa/cs-e/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 7 Dec 2023, 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.