2023-10996
Airworthiness Directives; Leonardo S.p.a. Helicopters
Resumo Rápido
- Número AD
- 2023-10996
- Autoridade
- FAA
- Data de emissão
- 23/05/2023
- Data efetiva
- 07/06/2023
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
23 de maio de 2023
Data Efetiva
07 de junho de 2023
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA está revogando a Diretiva de Aeronavegabilidade de Emergência (AD) 2023-07-51, que se aplicava a todos os helicópteros Leonardo S.p.a. Modelos AB139 e AW139 e que foi previamente enviada a todos os proprietários e operadores conhecidos desses helicópteros nos EUA. A AD de Emergência 2023-07-51 exigia inspeção de uma folga entre o conjunto de rolamento da extremidade superior da barra de controle de passo do rotor principal (M/R) e o conjunto do comando de controle de passo, e, dependendo dos resultados, substituição ou reidentificação do conjunto de rolamento da extremidade superior da barra de controle de passo do M/R. A AD de Emergência 2023-07-51 também proibia a instalação de um conjunto de rolamento da extremidade superior da barra de controle de passo do M/R afetado. Desde que a FAA emitiu a AD de Emergência 2023-07-51, foi determinado que uma folga entre o conjunto de rolamento da extremidade superior da barra de controle de passo do M/R e o conjunto do comando de controle de passo que se enquadra dentro de uma certa tolerância dimensional é aceitável. Esta AD continua a exigir as ações da AD de Emergência 2023-07-51, conforme especificado em uma AD da Agência Europeia de Segurança Aérea (EASA), que é incorporada por referência nesta AD, mas permite uma folga inferior a 0,5 mm. A FAA está emitindo esta AD para corrigir a condição insegura nesses produtos.
The FAA is superseding Emergency Airworthiness Directive (AD) 2023-07-51, which applied to all Leonardo S.p.a. Model AB139 and AW139 helicopters and which was previously sent to all known U.S. owners and operators of those helicopters. Emergency AD 2023-07-51 required inspecting for a gap between the main rotor (M/R) pitch link upper rod end assembly bearing and the pitch control lever assembly and, depending on the results, replacing or re-identifying the M/R pitch link upper rod end assembly. Emergency AD 2023-07-51 also prohibited installing an affected M/R pitch link upper rod end assembly. Since the FAA issued Emergency AD 2023-07-51, it has been determined that a gap between the M/R pitch link upper rod end assembly bearing and the pitch control lever assembly that is within a certain dimension tolerance is acceptable. This AD continues to require the actions in Emergency AD 2023-07-51, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference in this AD, but allows a gap of less than 0.5 mm. 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-2023-1049; Project Identifier AD-2023-00591-R; Amendment 39-22441; AD 2023-10-05] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. SUMMARY: The FAA is superseding Emergency Airworthiness Directive (AD) 2023-07-51, which applied to all Leonardo S.p.a. Model AB139 and AW139 helicopters and which was previously sent to all known U.S. owners and operators of those helicopters. Emergency AD 2023-07-51 required inspecting for a gap between the main rotor (M/R) pitch link upper rod end assembly bearing and the pitch control lever assembly and, depending on the results, replacing or re-identifying the M/R pitch link upper rod end assembly. Emergency AD 2023-07-51 also prohibited installing an affected M/R pitch link upper rod end assembly. Since the FAA issued Emergency AD 2023-07-51, it has been determined that a gap between the M/R pitch link upper rod end assembly bearing and the pitch control lever assembly that is within a certain dimension tolerance is acceptable. This AD continues to require the actions in Emergency AD 2023-07-51, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference in this AD, but allows a gap of less than 0.5 mm. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective June 7, 2023. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of June 7, 2023. The FAA must receive comments on this AD by July 7, 2023. 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-2023-1049; 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 street address for Docket Operations is listed above. Material Incorporated by Reference: • For EASA material that is incorporated by reference in this final rule, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; emailADs@easa.europa.eu; internet easa.europa.eu. You may find the EASA material on the EASA website at ad.easa.europa.eu. • You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Wo…
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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