FAA

FAA-2025-17717

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines

Autoridade

Federal Aviation Administration (EUA)

Data de Publicação

15 de setembro de 2025

Data Efetiva

Não informada

Prazo de Cumprimento

Antes do próximo voo

Resumo da Diretiva

PT-BRTradução automática

A FAA propõe adotar uma nova diretiva de aeronavegabilidade (DA) para todos os motores Rolls-Royce Deutschland Ltd & Co KG (RRD) Modelo RB211 Trent 768-60, 772-60 e 772B-60. Esta DA proposta foi originada por um relato de que um lote de pás do compressor de baixa pressão (BP) apresenta maior tendência a trincas devido a um desvio da configuração de projeto de pá aprovada. Esta DA proposta exigiria a remoção de serviço das pás do compressor de baixa pressão afetadas e sua substituição por uma peça operável. A FAA propõe esta DA para se abordar a condição insegura nesses produtos.

ENOriginal (Federal Register)

The FAA proposes to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211 Trent 768-60, 772-60, and 772B-60 engines. This proposed AD was prompted by a report that a batch of low pressure (LP) compressor blades are more prone to cracking due to a deviation from the approved blade configuration design. This proposed AD would require removal from service of the affected LP compressor blades and replacement with a serviceable part. The FAA is proposing this AD to address the unsafe condition on these products.

Documentos e Referências

📄 PDF Original 🌐 Federal Register

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Texto Completo da Diretiva

Expandir 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-2025-2541; Project Identifier MCAI-2024-00390-E] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211 Trent 768-60, 772-60, and 772B-60 engines. This proposed AD was prompted by a report that a batch of low pressure (LP) compressor blades are more prone to cracking due to a deviation from the approved blade configuration design. This proposed AD would require removal from service of the affected LP compressor blades and replacement with a serviceable part. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this NPRM by October 30, 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-2025-2541; 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 European Union Aviation Safety Agency (EASA) material identified in this proposed AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email:ADs@easa.europa.eu; website: easa.europa.eu. You may find this material on the EASA website at ad.easa.europa.eu. • You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call (817) 222-5110. FOR FURTHER INFORMATION CONTACT: Barbara Caufield, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238-7146; email: barbara.caufield@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited The FAA invites you to send any written relevant data, views, or arguments about this proposal. Send your comments using a method listed under …

Fonte: Federal Register (federalregister.gov). Texto original em inglês.