CS 25.953 Fuel system independence

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

IRImplementing rule

CS 25.953Fuel system independence

Each fuel system must meet the requirements of CS 25.903(b) by –

(a)Allowing the supply of fuel to each engine through a system independent of each part of the system supplying fuel to any other engine; or

(b)Any other acceptable method.

IR · CS 25.953 — CS-25 · ED Decision 2003/2/RM · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

All rules in SUBPART E – POWERPLANT

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

Ask Metis about CS 25.953 →

Metis opens with Avioverse in October 2026 · request early access.