2026-10-18: Flight Control System

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: 2026-10-18 Embraer S.A.: Amendment 39-23358; Docket No. FAA-2025-3993; Project Identifier MCAI-2025-00630-A. (a) Effective Date This airworthiness directive (AD) is effective July 6, 2026. (b) Affected ADs None. (c) Applicability This AD applies to Embraer S.A. Model EMB-505 airplanes, as identified in Agência Nacional de Aviação Civil (ANAC) AD 2025-04-01, effective April 15, 2025 (ANAC AD 2025-04-01), certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code 2700, Flight Control System. (e) Unsafe Condition This AD was prompted by the discovery that some airplanes may have invalid horizontal stabilizer (HS) backlash test results due to incorrect procedures being performed. The FAA is issuing this AD to address the unsafe condition. The unsafe condition, if not addressed, could result in unacceptable vibration levels and reduced controllability of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, ANAC AD 2025-04-01. (h) Exceptions to ANAC AD 2025-04-01 (1) Where ANAC AD 2025-04-01 refers to its effective date, this AD requires using the effective date of this AD for both Group 1 and Group 2 airplanes. (2) Where the material specified in ANAC AD 2025-04-01 allows the use of alternative or similar parts in place of the ones specified in the kits, provided these alternative or similar parts are approved by Embraer, this AD requires approval from either the Manager, International Validation Branch, FAA; ANAC; or ANAC's authorized Designee. If approved by the ANAC Designee, the approval must include the Designee's authorized signature. (3) Where ANAC AD 2025-04-01 refers to removal and replacement of attachment parts and pitch trim actuators in paragraphs (b)(1), (c)(1), (d)(1), (d)(2), (e)(1), (e)(2), and (f)(1), this AD specifies accomplishing the removal and replacement in these paragraphs in accordance with the appropriate procedures contained in the material referenced in ANAC AD 2025-04-01. (4) Where the material referenced in ANAC AD 2025-04-01 specifies discarding parts, this AD requires removing those parts from service. (5) This AD does not adopt paragraph (h) of ANAC AD 2025-04-01. (i) No Reporting Requirement Although the material referenced in ANAC AD 2025-04-01 specifies to submit information to the manufacturer, this AD does not require that action. (j) Credit for Previous Actions This paragraph provides credit for the actions required by paragraph (g) of this AD, if those actions were performed before the effective date of this AD using Embraer Service Bulletin No. 505-27-0034, dated September 19, 2024; or Embraer Service Bulletin No. 505-27-0034, Revision 01, dated October 4, 2024. (k) Alternative Methods of Compliance (AMOCs) (1) 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, send it to the attention of the person identified in paragraph (l)(1) of this AD and email to: AMOC@faa.gov. (2) 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. (l) Additional Information (1) For more information about this AD, contact Jim Rutherford, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (816) 329-4165; email: jim.rutherford@faa.gov. (2) For Embraer material identified in this AD that is not incorporated by reference, contact Embraer S.A., Technical Publications Avenida Brigadeiro Faria Lima, 2170, São Jose dos Campos-SP, Brazil; phone: +551239275852; email: distrib@embraer.com.br; website: https://www.flyembraer.com/irj/portal. (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Agência Nacional de Aviação Civil (ANAC) AD 2025-04-01, effective April 15, 2025. (ii) [Reserved] (3) For ANAC material identified in this AD, contact ANAC, Continuing Airworthiness Technical Branch (GTAC), Rua Doutor Orlando Feirabend Filho, 230-Centro Empresarial Aquarius-Torre B-Andares 14 a 18, Parque Residencial Aquarius, CEP 12.246-190-São José dos Campos-SP, Brazil; phone: 55 (12) 3203-6600; email: pac@anac.gov.br; website: anac.gov.br/en/. You may find this material on the ANAC website at sistemas.anac.gov.br/certificacao/DA/DAE.asp. (4) You may view this material 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 May 18, 2026. Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2026-10854 Filed 5-29-26; 8:45 am]BILLING CODE 4910-13-P