---
title: "CS-E 900 Propeller Parking Brake — CS-E · Avioverse"
description: "If a Propeller parking brake is provided it must be operated 100 times during the endurance test."
url: "https://avioverse.aero/regulations/easa/cs-e/subpart-e/cs-e-900-propeller-parking-brake"
---

# CS-E 900 Propeller Parking Brake

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

IR Implementing rule

## CS-E 900 Propeller Parking Brake

If a Propeller parking brake is provided it must be operated 100 times during the endurance test. It must be applied at the maximum Propeller speed recommended by the Engine constructor.

IR — CS-E · ED Decision 2003/9/RM · CS-E Easy Access Rules · EAR revision 7 Dec 2023

[All rules in SUBPART E – TURBINE ENGINES: TYPE SUBSTANTIATION](https://avioverse.aero/regulations/easa/cs-e/subpart-e)

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.