Are airworthiness directives part of the Code of Federal Regulations?
This section would specify that airworthiness directives are amendments to Sec. 39.13; however they are not codified in the annual edition of the Code of Federal Regulations. Airworthiness Directives are published in full in the Federal Register. Also, we no longer need the reference currently found in Sec. 39.13 to airworthiness directives that were formerly in Sec. 507.10. Current Sec. 39.19 transferred these directives to this section and they are still covered by Sec. 39.19. Section 39.15 Does an airworthiness directive apply if the product has been changed? This section would specify that a product is covered even if it has been modified, altered, or repaired in the area addressed by the airworthiness directive. Further, it would specify that if the change prevents you from complying with the airworthiness directive, you must ask FAA’s permission to use another means of complying, and that your request must include specific actions you propose. Although this material is new to par
