16 Jul 2015 Certification Specification (CS) Official Publication Certification Specifications group CS-23 Normal, Utility, Aerobatic and Commuter Aeroplanes Seotud sisuRead More Related Content [pdf] Easy Access Rules for Normal, Utility, Aerobatic and Commuter Category Aeroplanes (CS-23) (Amendment 4) Read More CS file [pdf] CS-23 Amendment 4 Related ED Decision ED Decision 2015/018/R Explanatory Note [pdf] Explanatory Note to ED Decision 2015/018/R (CS-23 Amendment 4) Change Information [pdf] CS-23 / Amendment 4 - Change Information