Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all Deutsche Aircraft GmbH (Type Certificate Previously Held by 328Support Services GmbH; AvCraft Aerospace GmbH; Fairchild Dornier GmbH; Dornier Luftfahrt GmbH) Model 328-100 and 328-300 airplanes. The NPRM published in the Federal Register on September 14, 2023 (88 FR 63036). The NPRM was prompted by AD 2023-0065, dated March 20, 2023, issued by EASA, which is the Technical Agent for the Member States of the European Union (EASA AD 2023-0065) (also referred to as the MCAI). The MCAI states that during a design review of the rudder control architecture, it was discovered that the rudder control rod could buckle during operation with one engine inoperative during take-off and landing phases. This condition, if not detected and corrected, could result in reduced control of the airplane. In the NPRM, the FAA proposed to require visually inspecting the rudder control rod, performing a one-time functional check of the rudder control rod, performing corrective actions if necessary, and reporting the inspection results, as specified in EASA AD 2023-0065. The NPRM also proposed to limit the installation of affected parts under certain conditions. The FAA is issuing this AD to address the potential failure of a rudder control rod. You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA-2023-1881. Discussion of Final Airworthiness Directive Comments The FAA received no comments on the NPRM or on the determination of the cost to the public. Conclusion This product has been approved by the aviation authority of another country and is approved for operation in the United States. Pursuant to the FAA's bilateral agreement with this State of Design Authority, it has notified the FAA of the unsafe condition described in the MCAI referenced above. The FAA reviewed the relevant data and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on this product. Except for minor editorial changes, this AD is adopted as proposed in the NPRM. None of the changes will increase the economic burden on any operator. Related Service Information Under 1 CFR Part 51 EASA AD 2023-0065 specifies procedures for a functional check and general visual inspection (GVI) of the rudder control rod (measuring the length of the rudder control rod, inspecting for signs of bending, ensuring both rudder control rod ends are symmetrically adjusted, and ensuring the threads of the rod end fully cover both inspection holes). Depending on the inspection results, EASA AD 2023-0065 also specifies corrective action, including obtaining and following instructions if any discrepancy is identified. EASA AD 2023-0065 also requires reporting the inspection results to Deutsche Aircraft GmbH and limits the installation of affected parts under certain conditions. This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. Interim Action The FAA considers that this AD would be an interim action. If final action is later identified, the FAA might consider further rulemaking then. Costs of Compliance The FAA estimates that this AD affects 54 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: Estimated Costs for Required Actions Labor cost Parts cost Cost per product Cost on U.S. operators 2 work-hours × $85 per hour = $170 $0 $170 $9,180 The FAA has received no definitive data on which to base the cost estimates for the on-condition actions specified in this AD. Paperwork Reduction Act A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a currently valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to take approximately 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. All responses to this collection of information are mandatory. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to: Information Collection Clearance Officer, Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth, TX 76177-1524. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority. The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a "significant regulatory action" under Executive Order 12866, (2) Will not affect intrastate aviation in Alaska, and (3) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39-AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2023-23-07 Deutsche Aircraft GmbH (Type Certificate Previously Held by 328 Support Services GmbH; AvCraft Aerospace GmbH; Fairchild Dornier GmbH; Dornier Luftfahrt GmbH): Amendment 39-22609; Docket No. FAA-2023-1881; Project Identifier MCAI-2023-00495-T. (a) Effective Date This airworthiness directive (AD) is effective January 16, 2024. (b) Affected ADs None. (c) Applicability This AD applies to all Deutsche Aircraft GmbH (Type Certificate previously held by 328 Support Services GmbH; AvCraft Aerospace GmbH; Fairchild Dornier GmbH; Dornier Luftfahrt GmbH) Model 328-100 and 328-300 airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code: 27, Flight Controls. (e) Unsafe Condition This AD was prompted by a manufacturer's design review, which identified a potential risk of the rudder control rod buckling during operation with one engine inoperative during take-off and landing phases. The FAA is issuing this AD to address the potential failure of a rudder control rod. The unsafe condition, if not addressed, could result in reduced control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2023-0065, dated March 20, 2023 (EASA AD 2023-0065). (h) Exceptions to EASA AD 2023-0065 (1) Where EASA AD 2023-0065 refers to its effective date, this AD requires using the effective date of this AD. (2) Replace the entire text of paragraph (2) of EASA AD 2023-0065 with the following text, "If, during the functional check or GVI as required by paragraph (1) of this AD, as applicable, the length of the rudder control rod exceeds the maximum allowable length specified in the ASB, the rudder control rod is bent, both rudder control rod ends are not symmetrically adjusted, or both inspection holes are not fully covered with the threads of the rod end, repair before further flight using a method approved by the Manager, International Validation Branch, FAA; or EASA; or Deutsche Aircraft GmbH's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature." (3) This AD does not adopt the "Remarks" section of EASA AD 2023-0065. (i) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the International Validation Branch, send it to the attention of the person identified in paragraph (j) of this AD. Information may be emailed to: 9-AVS-AIR-730-AMOC@faa.gov . Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or EASA; or Deutsche Aircraft GmbH's EASA DOA. If approved by the DOA, the approval must include the DOA-authorized signature. (j) Additional Information For more information about this AD, contact Todd Thompson, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 206-231-3228; email todd.thompson@faa.gov . (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) European Union Aviation Safety Agency (EASA) AD 2023-0065, dated March 20, 2023. (ii) [Reserved] (3) For EASA AD 2023-0065, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email: ADs@easa.europa.eu ; website: easa.europa.eu . You may find this EASA AD on the EASA website: ad.easa.europa.eu . (4) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th Street, Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (5) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email fr.inspection@nara.gov . Issued on November 13, 2023. Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service.