2021-22471
Diretivas de Aeronavegabilidade; Helicópteros Leonardo S.p.a.
Resumo Rápido
- Número AD
- 2021-22471
- Autoridade
- FAA
- Data de emissão
- 18/10/2021
- Data efetiva
- 22/11/2021
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
18 de outubro de 2021
Data Efetiva
22 de novembro de 2021
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA está revogando a Diretriz de Aeronavegabilidade (DA) de Emergência 2018-23-52, que se aplicava a todos os helicópteros Leonardo S.p.a. modelo AW169 e AW189. A DA 2018-23-52 exigia inspeção da porca, pino de travamento, arame de segurança e suporte de dobradiça conectados ao comando do atuador servo da cauda do rotor de cauda (TRA), e cada conexão do comando do atuador servo da cauda, com reparo se necessário. A DA 2018-23-52 também exigia aplicação de marca de tinta ou selante de torque na porca e relatório de certas informações. Esta DA exige inspeções repetitivas do TRA, inspeções e verificações repetitivas dos mancais duplos do rotor de cauda (TR DB), instalação de um TRA e TR DB melhorados, instalações e verificações repetitivas de fitas térmicas, substituição do TR DB melhorado (limite de vida), e ações corretivas aplicáveis, conforme especificado em uma DA da Agência Europeia de Segurança da Aviação (EASA), que é incorporada por referência. Esta DA foi motivada por relato de um acidente de um helicóptero modelo AW169, que foi observado ter perdido controle de guinada antes do acidente, e constatação de que certas inspeções e verificações do TR DB, instalação de um TRA e TR DB melhorados, certas outras ações, e ações corretivas aplicáveis são necessárias para resolver a condição insegura. A FAA está emitindo esta DA para resolver a condição insegura nestes produtos.
The FAA is superseding emergency Airworthiness Directive (AD) 2018-23-52, which applied to all Leonardo S.p.a. Model AW169 and AW189 helicopters. AD 2018-23-52 required inspecting the nut, cotter pin, lock-wire, and hinge bracket connected to the tail rotor servo-actuator (TRA) feedback lever link, and each connection of the TRA feedback lever link, and repair if necessary. AD 2018-23-52 also required applying a paint stripe or torque seal on the nut and reporting certain information. This AD requires repetitive inspections of the TRA, repetitive inspections and checks of the tail rotor duplex bearings (TR DB), installation of an improved TRA and TR DB, repetitive installations and checks of thermal strips, replacement of the improved TR DB (life limit), and applicable corrective actions, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a report of an accident of a Model AW169 helicopter, which was observed to have lost yaw control prior to the accident and a determination that certain inspections and checks of the TR DB, installation of an improved TRA and TR DB, certain other actions, and applicable corrective actions are necessary to address the unsafe condition. The FAA is issuing 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-2021-0612; Project Identifier MCAI-2021-00650-R; Amendment 39-21755; AD 2021-20-17] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: The FAA is superseding emergency Airworthiness Directive (AD) 2018-23-52, which applied to all Leonardo S.p.a. Model AW169 and AW189 helicopters. AD 2018-23-52 required inspecting the nut, cotter pin, lock-wire, and hinge bracket connected to the tail rotor servo-actuator (TRA) feedback lever link, and each connection of the TRA feedback lever link, and repair if necessary. AD 2018-23-52 also required applying a paint stripe or torque seal on the nut and reporting certain information. This AD requires repetitive inspections of the TRA, repetitive inspections and checks of the tail rotor duplex bearings (TR DB), installation of an improved TRA and TR DB, repetitive installations and checks of thermal strips, replacement of the improved TR DB (life limit), and applicable corrective actions, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a report of an accident of a Model AW169 helicopter, which was observed to have lost yaw control prior to the accident and a determination that certain inspections and checks of the TR DB, installation of an improved TRA and TR DB, certain other actions, and applicable corrective actions are necessary to address the unsafe condition. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective November 22, 2021. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of November 22, 2021. ADDRESSES: For material incorporated by reference (IBR) in this AD, contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; internet www.easa.europa.eu. You may find this material on the EASA website at https://ad.easa.europa.eu. You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817-222-5110. It is also available in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0612. Examining the AD Docket You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0612; 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 final rule, any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228-7330; email andrea.jimenez@faa.gov. …
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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