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Normal-Category Aeroplanes (CS-23) · CS-23 · EAR revision 13 May 2026
IRImplementing rule
(a)The aeroplane design must prevent foreseeable accumulation or shedding of ice or snow that adversely affect powerplant operation.
(b)The powerplant installation design must prevent any accumulation of ice or snow that adversely affects powerplant operation in those icing conditions for which certification is requested.
IR · CS 23.2415 — CS-23 · ED Decision 2017/013/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
AMCAcceptable means of compliance
ASTM F44 F3264 Standard Specification for Normal Category Aeroplanes Certification
8.4 Powerplant Installation Ice Protection
F3062/F3062M-20 Standard Specification for Aircraft Powerplant Installation
F3063/F3063M-21 Standard Specification for Aircraft Fuel Storage and Delivery
F3066/F3066M-18 Standard Specification for Aircraft Powerplant Installation Hazard Mitigation
Remarks
ASTM F44 published standards for showing compliance for electric propulsion systems. EASA has not yet accepted F3239-22a; however, EASA would take into consideration applications from applicants that use this standard as the basis for the development of their means of compliance subject to agreement with EASA.
[AMC & GM to CS-23: Issue 4]
[AMC & GM to CS-23: Issue 5]
AMC · AMC1 23.2415 — CS-23 · ED Decision 2026/003/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
AMCAcceptable means of compliance
CS-23 Amdt 4
23.929 Engine installation ice protection
23.1093 Induction system icing protection
23.975 Fuel tank vents and carburettor vapour vents
23.997 Fuel strainer or filter
23.1105 Induction system screens
Remarks
Following the cancellation of FAA AC-1419-2D, applicants should now use the icing conditions that are outlined in AMC1 23.2165.
AMC · AMC2 23.2415 — CS-23 · ED Decision 2023/002/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
AMCAcceptable means of compliance
CS VLA Amdt 1
VLA.1093 Induction system icing protection
VLA.975 Fuel tank vents and carburettor vapour vents
VLA.1105 Induction system screens
AMC · AMC3 23.2415 — CS-23 · ED Decision 2017/025/R · CS-23 Easy Access Rules · EAR revision 13 May 2026
Consolidated from the EASA Easy Access Rules (revision 13 May 2026, 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.
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