05 Dec 2011 Agency Decision Category Rulemaking activities DownloadsRead More on Certification Specifications, Including Airworthiness Code and Acceptable Means of Compliance, for Free Gas Balloons (CS-31GB). Downloads [pdf] ED Decision 2011/012/R [pdf] CS-31GB/Initial Issue [pdf] CS-31GB/Initial Issue - Explanatory Note Read More Related Certification Specification(s) CS-31GB Initial issue
