---
title: "CS 26.155 Flammability of cargo compartment liners — ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS, Part-26 · Avioverse"
description: "Compliance with point 26.155 of Part-26 is demonstrated by complying with CS 25.855 & Appendix F Part III, or equivalent or with the following:"
url: "https://avioverse.aero/regulations/easa/additional-airworthiness/additional-airworthiness-specifications-for/subpart-b/cs-26-155"
---

# CS 26.155 Flammability of cargo compartment liners

ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS · Regulation (EU) 2015/640 · EAR revision 20 Mar 2026

IR Implementing rule

## CS 26.155 Flammability of cargo compartment liners

Compliance with point 26.155 of Part-26 is demonstrated by complying with CS 25.855 & Appendix F Part III, or equivalent or with the following:

(a) Large aeroplanes, Type Certificated after 1 January 1958, with Class C or D compartment, greater than 5.66 m3 (200 cubic feet) have ceiling and sidewall liner panels which are constructed of:

(1) glass fibre reinforced resin, or

(2) materials which meet the flame penetration test specifications of Appendix F Part III, or other equivalent methods, or

(3) aluminium (only in the case of aluminium liner installations approved prior to 1 July 1989).

(b) For compliance with this paragraph, the term ‘liner’ includes any design features, such as a joint or fastener which would affect the capability of the liner to safely contain a fire.

\[Issue: 26/2]

\[Issue: 26/3]

IR · CS 26.155 — Regulation (EU) 2015/640 · ED Decision 2020/023/R · Part-26 Easy Access Rules · EAR revision 20 Mar 2026

[All rules in SUBPART B — AEROPLANES](https://avioverse.aero/regulations/easa/additional-airworthiness/additional-airworthiness-specifications-for/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 20 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.