CFR › Title 14 › Part 39 › §39.514 CFR §39.5Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkFAA 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.