CS 25.1145 Ignition switches

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

IRImplementing rule

CS 25.1145Ignition switches

(a)Ignition switches must control each engine ignition circuit on each engine.

(b)There must be means to quickly shut off all ignition by the grouping of switches or by a master ignition control.

(c)Each group of ignition switches except ignition switches for turbine engines for which continuous ignition is not required, and each master ignition control must have a means to prevent its inadvertent operation.

IR · CS 25.1145 — 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 25.1145 →

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