ED Decision 2015/019/R

CS-25 / Amendment 17

This Decision introduces the following changes to CS-25:

(1) New certification standards addressing High-Intensity Radiated Fields (HIRF) and lightning hazards on electrical and electronic systems. The new standards reflect the developments made over the last years in this domain, which EASA previously managed through Certification Review Items (CRIs). Associated to these new CS-25 provisions, two new AMC-20 series have been published providing Acceptable Means of Compliance (AMC) against HIRF and lightning hazards.

(2) The amendment to and the creation of AMCs in the field of cabin safety, reflecting the means of compliance that have been accepted by EASA.

(3) A new security rule and a corresponding AMC for the design and installation of chemical oxygen generators. This change has been developed to harmonise with an equivalent FAA Part 25 rule and associated Advisory Circular (AC).

(4) Two new appendices to AMC 25-11 dealing with head-up and weather displays. These appendices have been based on the recommendations of an Aviation Rulemaking Advisory Committee (ARAC) group, in particular the Avionics Systems Harmonization Working Group (ASHWG), in which EASA participated.

The changes will contribute to an updated CS-25 reflecting the available state of the art and AMC (complying with the objective of Article 19 of Regulation (EC) No 216/2008), will facilitate the certification process, and will improve harmonisation with the Federal Aviation Administration (FAA). It is expected that Amendment 17 will increase safety, will have no social or environmental impacts, and may provide a slight economic benefit by streamlining the certification process.

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