---
title: "CS-E 660 Fuel Pressure and Temperature — CS-E · Avioverse"
description: "(See AMC E 660) A substantiation must be made to establish the minimum and maximum fuel pressure and fuel temperature limits to be approved for the Engine."
url: "https://avioverse.aero/regulations/easa/cs-e/subpart-e/cs-e-660-fuel-pressure-and-temperature"
---

# CS-E 660 Fuel Pressure and Temperature

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

IR Implementing rule

## CS-E 660 Fuel Pressure and Temperature

(See AMC E 660)

A substantiation must be made to establish the minimum and maximum fuel pressure and fuel temperature limits to be approved for the Engine. The details of the substantiation, which may involve rig tests and/or complete Engine tests, must be agreed with the Agency.

\[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 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.