Versions of 14 CFR Part 39 - Airworthiness Directives on LawServer 2024 14 CFR Part 39 – Airworthiness Directives 2023 14 CFR PART 39 – AIRWORTHINESS DIRECTIVES 2022 14 CFR Part 39 – Airworthiness Directives 2021 14 CFR Part 39 – Airworthiness Directives 2020 14 CFR Part 39 – Airworthiness Directives