26 Feb 2009 Certification Specification (CS) Official Publication Certification Specifications group CS-31HB Hot Air Balloons Related ContentRead More Related Content [pdf] Easy Access Rules for Hot Air Balloons (CS-31HB) (Initial issue) Read More CS file [pdf] CS-31HB Initial issue Related ED Decision ED Decision 2009/005/R Explanatory Note [pdf] CS-31HB/Initial Issue - Explanatory Note
