---
title: "CS 25.1455 Draining of fluids subject to freezing — CS-25 · Avioverse"
description: "If fluids subject to freezing may be drained overboard in flight or during ground operation, the drains must be designed and located to prevent the…"
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-f/cs-25-1455"
---

# CS 25.1455 Draining of fluids subject to freezing

Large Aeroplanes (CS-25) · CS-25 · EAR revision 26 Jan 2023

IR Implementing rule

## CS 25.1455 Draining of fluids subject to freezing

If fluids subject to freezing may be drained overboard in flight or during ground operation, the drains must be designed and located to prevent the formation of hazardous quantities of ice on the aeroplane as a result of the drainage.

IR · CS 25.1455 — CS-25 · ED Decision 2003/2/RM · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART F – EQUIPMENT](https://avioverse.aero/regulations/easa/cs-25/subpart-f)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 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.