FAA-2026-16502
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
Resumo Rápido
- Número AD
- FAA-2026-16502
- Autoridade
- FAA
- Data de emissão
- 13/08/2026
- Data efetiva
- —
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
13 de agosto de 2026
Data Efetiva
Não informada
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA propõe revogar a Diretiva de Aeronavegabilidade (DA) 2025-26-03, que se aplica a certos motores Rolls-Royce Deutschland Ltd & Co KG (RRD) modelos Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-CE, Trent 1000-D, Trent 1000-E, Trent 1000-G e Trent 1000-H. A DA 2025-26-03 exige inspeções repetitivas por boroscópio (BSI) da cavidade do tambor traseiro do compressor de alta pressão (CAP) e cavidades entre cada disco rotativo do CAP, e dependendo dos resultados da inspeção, remoção do motor de serviço. A DA 2025-26-03 também permite um método alternativo de conformidade com as BSIs repetitivas se certas ações forem cumpridas. Desde que a FAA emitiu a DA 2025-26-03, a RRD publicou material de serviço atualizado com um arranjo de parafusos revisado na interface do eixo rotativo do CAP com o disco rotativo da turbina de alta pressão (TAP) para resolver a condição insegura. Esta DA proposta exigiria BSIs repetitivas da cavidade do tambor traseiro do CAP e cavidades entre cada disco rotativo do CAP, e dependendo dos resultados da inspeção, remoção do motor de serviço. Esta DA proposta também permitiria um método alternativo de conformidade com BSIs se certas ações forem cumpridas, e exigiria modificação do arranjo de parafusos como ação de encerramento para as BSIs repetitivas. A FAA está propondo esta DA para resolver a condição insegura nestes produtos.
The FAA proposes to supersede Airworthiness Directive (AD) 2025-26-03, which applies to certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000- CE, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H engines. AD 2025-26-03 requires repetitive borescope inspections (BSIs) of the high-pressure compressor (HPC) rear drum cavity and cavities between each HPC rotor disc, and depending on the results of inspection, removal of the engine from service. AD 2025-26-03 also allows an alternative method of complying with the repetitive BSIs if certain actions are accomplished. Since the FAA issued AD 2025-26-03, RRD published updated service material with a revised bolting arrangement at the HPC rotor shaft to high-pressure turbine (HPT) rotor disc interface to address the unsafe condition. This proposed AD would require repetitive BSIs of the HPC rear drum cavity and cavities between each HPC rotor disc, and depending on the results of inspection, removal of the engine from service. This proposed AD would also allow an alternative method of complying with BSIs if certain actions are accomplished, and require modification of the bolting arrangement as a terminating action for the repetitive BSIs. 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-2026-7240; Project Identifier MCAI-2025-01635-E] • RIN 2120-AA64 ( printed page 52263) AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD) 2025-26-03, which applies to certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-CE, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H engines. AD 2025-26-03 requires repetitive borescope inspections (BSIs) of the high-pressure compressor (HPC) rear drum cavity and cavities between each HPC rotor disc, and depending on the results of inspection, removal of the engine from service. AD 2025-26-03 also allows an alternative method of complying with the repetitive BSIs if certain actions are accomplished. Since the FAA issued AD 2025-26-03, RRD published updated service material with a revised bolting arrangement at the HPC rotor shaft to high-pressure turbine (HPT) rotor disc interface to address the unsafe condition. This proposed AD would require repetitive BSIs of the HPC rear drum cavity and cavities between each HPC rotor disc, and depending on the results of inspection, removal of the engine from service. This proposed AD would also allow an alternative method of complying with BSIs if certain actions are accomplished, and require modification of the bolting arrangement as a terminating action for the repetitive BSIs. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this NPRM by September 28, 2026. 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-2026-7240; 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, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of t…
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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