---
title: "AMC 25J1041 General — CS-25 · Avioverse"
description: "The need for additional tests, if any, in hot climatic conditions should take account of any tests made by the APU constructor to establish APU…"
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-j/amc-25j1041-general"
---

# AMC 25J1041 General

Large Aeroplanes (CS-25) · CS-25 · EAR revision 26 Jan 2023

AMC Acceptable means of compliance

## AMC 25J1041 General

The need for additional tests, if any, in hot climatic conditions should take account of any tests made by the APU constructor to establish APU performance and functioning characteristics and of satisfactory operating experience of similar power units installed in other types of aeroplane.

The maximum climatic conditions for which compliance will be established should be declared and this should not be less severe than the ICAO Intercontinental Maximum Standard Climate (37·8°C (100oF) at sea-level). If the tests are conducted under conditions which deviate from the maximum declared ambient temperature, the maximum temperature deviation should not normally exceed 13·9°C (25°F).

\[Amdt 25/1]

AMC — CS-25 · ED Decision 2005/006/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART J – AUXILIARY POWER UNIT INSTALLATIONS](https://avioverse.aero/regulations/easa/cs-25/subpart-j)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 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.