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1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2023-26-05 Pilatus Aircraft Ltd.: Amendment 39-22648; Docket No. FAA-2023-2404; Project Identifier MCAI-2023-01268-A. (a) Effective Date This airworthiness directive (AD) is effective January 3, 2024. (b) Affected ADs None. (c) Applicability This AD applies to Pilatus Aircraft Ltd. Model PC-24 Airplanes, as identified in European Union Aviation Safety Agency (EASA) Emergency AD 2023-0219-E, dated December 19, 2023 (EASA Emergency AD 2023-0219-E), certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code 2721, Rudder Tab Control System. (e) Unsafe Condition This AD was prompted by a determination that the titanium threaded bolts installed at the forward end of the short rudder trim tab actuating rods could be subject to unexpectedly high oscillating loads due to aerodynamic forces acting on the rudder trim tab. The FAA is issuing this AD to address the unsafe condition. The unsafe condition, if not addressed, could result in failure of titanium threaded bolts with consequent damage to the rudder and rudder trim tab, which could result in in loss of rudder control and reduced or loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA Emergency AD 2023-0219-E. (h) Exceptions to EASA Emergency AD 2023-0219-E (1) Where EASA Emergency AD 2023-0219-E refers to its effective date, this AD requires using the effective date of this AD. (2) Where EASA Emergency AD 2023-0219-E requires compliance in terms of flight hours, this AD requires using hours time-in-service. (3) Where paragraph (4) of EASA Emergency AD 2023-0190-E specifies to "contact Pilatus to obtain approved instructions, and within the compliance time(s) specified therein, accomplish those instructions accordingly;" for this AD, replace that text with "accomplish corrective action in accordance with a method approved by the Manager, International Validation Branch, FAA; or EASA; or Pilatus EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature." (4) Where the service information referenced in EASA Emergency AD 2023-0190-E specifies to "Return bellcrank bolts with damage to Pilatus Aircraft Ltd." and "Return the two threaded bolts (3) (that you removed) to Pilatus Aircraft Ltd.", this AD does not require those actions. (5) Where the service information referenced in EASA Emergency AD 2023-0190-E specifies "Discard the two lock washers (2)", for this AD, replace that text with "Remove the two lock washers (2) from service." (6) This AD does not adopt the Remarks paragraph of EASA Emergency AD 2023-0190-E. (i) 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 local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, mail it to the address identified in paragraph (j) of this AD or email to: 9-AVS-AIR-730-AMOC@faa.gov. If mailing information, also submit information by email. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local Flight Standards District Office/certificate holding district office. (j) Additional Information For more information about this AD, contact Doug Rudolph, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (816) 329-4059; email: doug.rudolph@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 the AD specifies otherwise. (i) European Union Aviation Safety Agency (EASA) Emergency AD 2023-0219-E, dated December 19, 2023. (ii) [Reserved] (3) For EASA Emergency AD 2023-0219-E, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email: ADs@easa.europa.eu; website: easa.europa.eu. You may find this EASA Emergency AD on the EASA website at ad.easa.europa.eu. (4) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222-5110. (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 December 22, 2023. Caitlin Locke, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023-28866 Filed 12-27-23; 4:15 pm]BILLING CODE 4910-13-P
