FAA-2025-07275
Airworthiness Directives; Bell Textron Canada Limited Helicopters
Resumo Rápido
- Número AD
- FAA-2025-07275
- Autoridade
- FAA
- Data de emissão
- 28/04/2025
- Data efetiva
- 13/05/2025
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
28 de abril de 2025
Data Efetiva
13 de maio de 2025
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA está substituindo a Diretiva de Aeronavegabilidade (AD) 2021-24-09, que se aplicava a certos helicópteros modelo 430 da Bell Textron Canada Limited. A AD 2021-24-09 exigia inspeção visual da articulação do comando de passo do rotor principal (R/P), do terminal de haste e de um certo rolamento universal com número de peça específico, realização de purga de graxa e inspeção por partículas magnéticas de cada articulação do R/P, e, dependendo dos resultados da inspeção, remoção ou substituição de certas peças e realização de ações adicionais. A AD 2021-24-09 também exigia inspeções recorrentes de cada articulação do R/P e de cada rolamento universal. Desde que a FAA emitiu a AD 2021-24-09, o fabricante reduziu os limites de vida útil das peças afetadas e introduziu novas conjuntos de comando de passo do rotor principal pela reidenticação dos conjuntos de comando de passo do rotor principal que eram obrigados a serem inspecionados pela AD 2021-24-09. Esta AD exige ações similares à AD 2021-24-09, mas reduz os limites de vida útil e exige a substituição dos conjuntos de comando de passo do rotor principal por conjuntos com números de peça reidenticados. Estas ações são especificadas em uma AD da Transport Canada, que é incorporada por referência. A FAA está emitindo esta AD para corrigir a condição insegura nesses produtos.
The FAA is superseding Airworthiness Directive (AD) 2021-24- 09, which applied to certain Bell Textron Canada Limited Model 430 helicopters. AD 2021-24-09 required a visual inspection of the main rotor (M/R) pitch link clevis (clevis), rod end, and a certain part- numbered universal bearing, performing a purge grease, and performing a magnetic particle inspection of each M/R clevis, and depending on the inspection results, removing or replacing certain parts and performing additional actions. AD 2021-24-09 also required recurring inspections of each M/R clevis and each universal bearing. Since the FAA issued AD 2021-24-09, the manufacturer has reduced the life limits of the affected parts and introduced new M/R pitch link assemblies by re- identifying the M/R pitch link assemblies that were required to be inspected by AD 2021-24-09. This AD requires similar actions as AD 2021-24-09 but reduces the life limits and requires replacing the M/R pitch link assemblies with re-identified part numbered assemblies. These actions are specified in a Transport Canada AD, which is incorporated by reference. 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-2025-0743; Project Identifier MCAI-2024-00711-R; Amendment 39-23024; AD 2025-09-03] • RIN 2120-AA64 ( printed page 17547) AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2021-24-09, which applied to certain Bell Textron Canada Limited Model 430 helicopters. AD 2021-24-09 required a visual inspection of the main rotor (M/R) pitch link clevis (clevis), rod end, and a certain part-numbered universal bearing, performing a purge grease, and performing a magnetic particle inspection of each M/R clevis, and depending on the inspection results, removing or replacing certain parts and performing additional actions. AD 2021-24-09 also required recurring inspections of each M/R clevis and each universal bearing. Since the FAA issued AD 2021-24-09, the manufacturer has reduced the life limits of the affected parts and introduced new M/R pitch link assemblies by re-identifying the M/R pitch link assemblies that were required to be inspected by AD 2021-24-09. This AD requires similar actions as AD 2021-24-09 but reduces the life limits and requires replacing the M/R pitch link assemblies with re-identified part numbered assemblies. These actions are specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective May 13, 2025. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of May 13, 2025. The FAA must receive comments on this AD by June 12, 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-2025-0743; 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, 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 Transport Canada material identified in this AD, contact Transport Canada, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario, K1A 0N5, CANADA; phone: (888) 663-3639; email:TC.AirworthinessDirectives-Consignesdenavigabilite.TC@tc.gc.ca. You may find the Transport Canada material on the Transport Canada website at …
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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