FAA-2025-11697
Airworthiness Directives; Airbus Helicopters
Resumo Rápido
- Número AD
- FAA-2025-11697
- Autoridade
- FAA
- Data de emissão
- 25/06/2025
- Data efetiva
- —
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
25 de junho de 2025
Data Efetiva
Não informada
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA propõe cancelar a Diretiva de Aeronavegabilidade (DA) 2021-26-07, que se aplica a todos os helicópteros Airbus Helicopters modelo EC120B. A DA 2021-26-07 exige a realização de inspeções repetitivas do corpo do cubo do rotor de cauda (RC) e, dependendo dos resultados da inspeção, a substituição de determinadas peças e a realização de inspeções adicionais. A DA 2021-26-07 também exige que, para certos helicópteros, sejam removidos de serviço qualquer parafuso, arruela e porca instalados no corpo do cubo do RC em certos limites de vida útil, e que sejam substituídos por peças aeronavegáveis e que sejam realizadas inspeções adicionais. Além disso, a DA 2021-26-07 proíbe a instalação de um corpo de cubo de RC com número de peça específico, a menos que certos requisitos sejam atendidos. Desde que a FAA emitiu a DA 2021-26-07, foi determinado que é necessário modificar a ligação do corpo do cubo do RC e do flange estriado pela adição de marcas de tinta vermelha para possibilitar a detecção de qualquer perda de torque de aperto. Esta DA proposta exigiria as mesmas inspeções repetitivas e ações corretivas da DA 2021-26-07 e exigiria a modificação da ligação do corpo do cubo do RC, a qual seria uma ação de encerramento das inspeções repetitivas. A DA proposta também exigiria inspeções repetitivas da linha de tinta vermelha adicionada durante a modificação da ligação do corpo do cubo do RC para alinhamento. A FAA está propondo esta DA para solucionar a condição insegura destes produtos.
The FAA proposes to supersede Airworthiness Directive (AD) 2021-26-07, which applies to all Airbus Helicopters Model EC120B helicopters. AD 2021-26-07 requires performing repetitive inspections of the tail rotor (TR) hub body and, depending on the inspection results, replacing certain parts, and accomplishing further inspections. AD 2021-26-07 also requires for certain helicopters removing from service any bolt, washer, and nut installed on the TR hub body at certain life limits and replacing them with airworthy parts and accomplishing further inspections. Additionally, AD 2021-26-07 prohibits the installation of a certain part-numbered TR hub body unless certain requirements are met. Since the FAA issued AD 2021-26- 07, it was determined that modifying the link of the TR hub body and splined flange by adding red paint marks is necessary to enable the detection of any loss of tightening torque. This proposed AD would require the same repetitive inspections and corrective actions as AD 2021-26-07 and would require modification of the link of the TR hub body, which would be a terminating action for the repetitive inspections. The proposed AD would also require repetitive inspections of the red paint line added during the modification of the link of the TR hub body for alignment. The FAA is proposing this AD to address the unsafe condition on these products.Texto Completo da Diretiva
Expandir texto completo (Federal Register)Texto completo (Federal Register)
Document Headings Document headings vary by document type but may contain the following: • the agency or agencies that issued and signed a document • the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to • the agency docket number / agency internal file number • the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Transportation Federal Aviation Administration • 14 CFR Part 39 • [Docket No. FAA-2025-0922; Project Identifier MCAI-2024-00650-R] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD) 2021-26-07, which applies to all Airbus Helicopters Model EC120B helicopters. AD 2021-26-07 requires performing repetitive inspections of the tail rotor (TR) hub body and, depending on the inspection results, replacing certain parts, and accomplishing further inspections. AD 2021-26-07 also requires for certain helicopters removing from service any bolt, washer, and nut installed on the TR hub body at certain life limits and replacing them with airworthy parts and accomplishing further inspections. Additionally, AD 2021-26-07 prohibits the installation of a certain part-numbered TR hub body unless certain requirements are met. Since the FAA issued AD 2021-26-07, it was determined that modifying the link of the TR hub body and splined flange by adding red paint marks is necessary to enable the detection of any loss of tightening torque. This proposed AD would require the same repetitive inspections and corrective actions as AD 2021-26-07 and would require modification of the link of the TR hub body, which would be a terminating action for the repetitive inspections. The proposed AD would also require repetitive inspections of the red paint line added during the modification of the link of the TR hub body for alignment. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this NPRM by August 11, 2025. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to regulations.gov. Follow the instructions for submitting comments. • Fax: (202) 493-2251. • Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2025-0922; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the mandatory continuing airworthiness information (MCAI) any comments received, and other information. The street address for Docket Operations is listed above. Material Incorporated by Reference: • For Airbus Helicopters material identified in this proposed AD, contact Airbus Helicopters, 2701 North Forum Drive, Grand Prairie, TX 75052; phone: (972) 641-0000 or: (800) 232-0323; fax: (972) 641-3775; website:airbus.com/en/products-services/helicopters/hcare-services/airbusworld. • You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Parkway, Room 6N-321, Fort Worth, TX 76177. For information on the availability of this…
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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