---
title: "CS 25.1727 Flammable Fluid Shutoff Means; EWIS — CS-25 · Avioverse"
description: "EWIS associated with each flammable fluid shutoff means and control must be fireproof or must be located and protected so that any fire in a fire zone…"
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-h/cs-25-1727"
---

# CS 25.1727 Flammable Fluid Shutoff Means; EWIS

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

IR Implementing rule

## CS 25.1727 Flammable Fluid Shutoff Means; EWIS

EWIS associated with each flammable fluid shutoff means and control must be fireproof or must be located and protected so that any fire in a fire zone will not affect operation of the flammable fluid shutoff means in accordance with the requirements of CS 25.1189.

\[Amdt 25/5]

IR · CS 25.1727 — CS-25 · ED Decision 2008/006/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART H – ELECTRICAL WIRING INTERCONNECTION SYSTEMS](https://avioverse.aero/regulations/easa/cs-25/subpart-h)

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.