--- title: "CS 23.2500 – CS 23.2555: SUBPART F — SYSTEMS AND EQUIPMENT (CS-23) — rule index · Avioverse" description: "CS 23.2500 – CS 23.2555, CS-23. Requirements CS 23.2500, CS 23.2505 and CS 23.2510 are general requirements applicable to systems and equipment installed…" url: "https://avioverse.aero/regulations/easa/cs-23/subpart-f" --- # SUBPART F — SYSTEMS AND EQUIPMENT Normal-Category Aeroplanes (CS-23) · CS-23 · CS 23.2500 – CS 23.2555 On this page 1. ## [CS 23.2500 General requirements on systems and equipment function](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2500) Requirements CS 23.2500, CS 23.2505 and CS 23.2510 are general requirements applicable to systems and equipment installed in the aeroplane, and should… [AMC1 23.2500 General requirements on systems and equipment function](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2500#amc1-23-2500) [AMC2 23.2500 General requirements on systems and equipment function](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2500#amc2-23-2500) [AMC3 23.2500 General requirements on systems and equipment function](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2500#amc3-23-2500) 2. ## [CS 23.2505 General requirements on equipment installation](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2505) Each item of installed equipment is installed according to limitations specified for that equipment. [AMC1 23.2505 General requirements on equipment installation](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2505#amc1-23-2505) [AMC2 23.2505 General requirements on equipment installation](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2505#amc2-23-2505) [AMC3 23.2505 General requirements on equipment installation](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2505#amc3-23-2505) 3. ## [CS 23.2510 Equipment, systems, and installations](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2510) The equipment and systems identified in CS 23.2500, considered separately and in relation to other systems, must be designed and installed such that: [AMC1 23.2510 Equipment, systems, and installations](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2510#amc1-23-2510) [AMC2 23.2510 Equipment, systems, and installations](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2510#amc2-23-2510) [AMC3 23.2510 Equipment, systems, and installations](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2510#amc3-23-2510) 4. ## [CS 23.2515 Electrical and electronic system lightning protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2515) For an aeroplane where the exposure to lightning is likely: each electrical or electronic system that performs a function, the failure of which would… [AMC1 23.2515 Electrical and electronic system lightning protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2515#amc1-23-2515) [AMC2 23.2515 Electrical and electronic system lightning protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2515#amc2-23-2515) [AMC3 23.2515 Electrical and electronic system lightning protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2515#amc3-23-2515) 5. ## [CS 23.2520 High-intensity radiated fields (HIRF) protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2520) Each electrical and electronic system that perform a function, the failure of which would prevent the continued safe flight and landing of the aeroplane… [AMC1 23.2520 High-intensity radiated fields (HIRF) protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2520#amc1-23-2520) [AMC2 23.2520 High-intensity radiated fields (HIRF) protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2520#amc2-23-2520) [AMC3 23.2520 High-intensity radiated fields (HIRF) protection](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2520#amc3-23-2520) 6. ## [CS 23.2525 System power generation, storage, and distribution](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2525) The power generation, storage, and distribution for any system must be designed and installed to: [AMC1 23.2525 System power generation, storage, and distribution](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2525#amc1-23-2525) [AMC2 23.2525 System power generation, storage, and distribution](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2525#amc2-23-2525) [AMC3 23.2525 System power generation, storage, and distribution](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2525#amc3-23-2525) 7. ## [CS 23.2530 External and cockpit lighting](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2530) The applicant must design and install all lights to minimise any adverse effects on the performance of flight crew duties. [AMC1 23.2530 External and cockpit lighting](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2530#amc1-23-2530) [AMC2 23.2530 External and cockpit lighting](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2530#amc2-23-2530) [AMC3 23.2530 External and cockpit lighting](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2530#amc3-23-2530) 8. ## [CS 23.2535 Safety equipment](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2535) Safety and survival equipment, required by the operating rules, must be reliable, readily accessible, easily identifiable, and clearly marked to identify… [AMC1 23.2535 Safety equipment](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2535#amc1-23-2535) [AMC2 23.2535 Safety equipment](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2535#amc2-23-2535) [AMC3 23.2535 Safety equipment](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2535#amc3-23-2535) 9. ## [CS 23.2540 Flight in icing conditions](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2540) An applicant who requests certification for flight in icing conditions must show the following in the icing conditions for which certification is… [AMC1 23.2540 Flight in icing conditions](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2540#amc1-23-2540) [AMC2 23.2540 Flight in icing conditions](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2540#amc2-23-2540) [AMC3 23.2540 Flight in icing conditions](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2540#amc3-23-2540) 10. ## [CS 23.2545 Pressurised systems elements](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2545) Pressurised systems must withstand appropriate proof and burst pressures. [AMC1 23.2545 Pressurised systems elements](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2545#amc1-23-2545) [AMC2 23.2545 Pressurised systems elements](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2545#amc2-23-2545) [AMC3 23.2545 Pressurised systems elements](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2545#amc3-23-2545) 11. ## [CS 23.2550](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2550) (reserved) 12. ## [CS 23.2555 Installation of recorders (e.g. cockpit voice recorders and flight data recorders)](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2555) If recording is required by the operating rules, the system: [AMC1 23.2555 Installation of recorders (e.g. cockpit voice recorders and flight data recorders)](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2555#amc1-23-2555) [AMC2 23.2555 Installation of recorders (e.g. cockpit voice recorders and flight data recorders)](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2555#amc2-23-2555) [AMC3 23.2555 Installation of recorders (e.g. cockpit voice recorders and flight data recorders)](https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2555#amc3-23-2555) Consolidated from the EASA Easy Access Rules (revision 13 May 2026, extracted 13 Oct 2026) for convenience. 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