AD Docket: You may examine the AD docket at regulations.gov under Docket No. The FAA is adopting a new airworthiness directive (AD) for certain Diamond Aircraft Industries Inc. (DAI) Model DA20-C1 airplanes. The FAA amends § 39.13 by adding the following new airworthiness directive: 2026-15-18 Diamond Aircraft Industries Inc.: Amendment 39-23430; Docket No. (h) No Reporting Requirement Although step 14 of the Accomplishment/Instructions of Diamond Aircraft Industries Mandatory Service Bulletin No. ( printed page 49271) (ii) [Reserved] (3) For Diamond Aircraft Industries material identified in this AD, contact Diamond Aircraft Industries Inc., 1560 Crumlin Sideroad, London, Ontario, Canada, N5V 1S2; phone: (519) 457-4041, fax: (519) 457-4045; email: support-canada@diamondaircraft.com; website: diamondaircraft.com.