01 Jul 2020 Official Publication Certification Specifications group CS-23 Normal, Utility, Aerobatic and Commuter Aeroplanes Regulation group Initial Airworthiness Read More Read More CS file [pdf] CS-23 Amendment 5 and AMC & GM to CS-23 Issue 3 Related ED Decision ED Decision 2020/006/R Explanatory Note [pdf] Explanatory Note to Decision 2020/006/R Change Information [pdf] Change Information - CS-23 Amendment 5 and AMC & GM to CS-23 Issue 3