---
title: "CS-E 1040 ETOPS — CS-E · Avioverse"
description: "(See AMC 20-6) In order to be approved for ETOPS capability, the engine shall achieve an IFSD rate that is compatible with the safety target associated…"
url: "https://avioverse.aero/regulations/easa/cs-e/subpart-f/cs-e-1040-etops"
---

# CS-E 1040 ETOPS

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

IR Implementing rule

## CS-E 1040 ETOPS

(See AMC 20-6)

In order to be approved for ETOPS capability, the engine shall achieve an IFSD rate that is compatible with the safety target associated to the maximum flight duration and the longest diversion time for which approval is being sought.

\[Amdt. No.: E/3]

IR — CS-E · ED Decision 2010/015/R · CS-E Easy Access Rules · EAR revision 7 Dec 2023

[All rules in SUBPART F — TURBINE ENGINES - ENVIRONMENTAL AND OPERATIONAL DESIGN REQUIREMENTS](https://avioverse.aero/regulations/easa/cs-e/subpart-f)

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.