14 C.F.R. § 39.5Download PDFCurrent through October 31, 2024Section 39.5 - When does FAA issue airworthiness directives?FAA issues an airworthiness directive addressing a product when we find that:(a) An unsafe condition exists in the product; and(b) The condition is likely to exist or develop in other products of the same type design. 14 C.F.R. § 39.5