---
title: "CS-E 500 Functioning — CS-E · Avioverse"
description: "(See AMC E 500) (a) The Engine must be free from dangerous surge and instability throughout its operating range of ambient and running conditions within…"
url: "https://avioverse.aero/regulations/easa/cs-e/subpart-d/cs-e-500-functioning"
---

# CS-E 500 Functioning

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

IR Implementing rule

## CS-E 500 Functioning

(See AMC E 500)

(a) The Engine must be free from dangerous surge and instability throughout its operating range of ambient and running conditions within the air intake pressure and temperature conditions declared by the constructor.

(b)\[Reserved]

(c) All Engines must be equipped with an igniter system suitable for starting the Engine on the ground and in flight at all altitudes up to a declared altitude.

\[Amdt. No.: E/1]

IR — CS-E · ED Decision 2007/015/R · CS-E Easy Access Rules · EAR revision 7 Dec 2023

[All rules in SUBPART D – TURBINE ENGINES: DESIGN AND CONSTRUCTION](https://avioverse.aero/regulations/easa/cs-e/subpart-d)

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.