05 Feb 2009 Certification Specification (CS) Official Publication Amendment 1 Certification Specifications group CS-23 Normal, Utility, Aerobatic and Commuter Aeroplanes Related ContentRead More Related Content [pdf] Easy Access Rules for Normal, Utility, Aerobatic and Commuter Category Aeroplanes (CS-23) (Amendment 1) Read More CS file [pdf] CS-23 Amendment 1 Related ED Decision ED Decision 2009/001/R Explanatory Note [pdf] CS-23/Amendment 1 - Explanatory Note Change Information [pdf] CS-23/Amendment 1 - Change Information