---
title: "CS 26.308 Damage tolerance data for existing published repairs to fatigue-critical structure — ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS, Part-26 · Avioverse"
description: "Compliance with point 26.308(a) of Part-26 is demonstrated when damage tolerance data is developed in accordance with AMC 20-20A Paragraph 7 and Appendix…"
url: "https://avioverse.aero/regulations/easa/additional-airworthiness/additional-airworthiness-specifications-for/subpart-b/cs-26-308"
---

# CS 26.308 Damage tolerance data for existing published repairs to fatigue-critical structure

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

IR Implementing rule

## CS 26.308 Damage tolerance data for existing published repairs to fatigue-critical structure

Compliance with point 26.308(a) of Part-26 is demonstrated when damage tolerance data is developed in accordance with AMC 20-20A Paragraph 7 and Appendix 3 for each existing published repair to the [fatigue-critical structure](https://avioverse.aero/glossary/easa/fatigue-critical-structure) (FCS) identified in accordance with points 26.306 and 26.307 of Part26.

\[Issue: 26/3]

IR · CS 26.308 — 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.