FAA-2026-13869
Airworthiness Directives; The Boeing Company Airplanes
Resumo Rápido
- Número AD
- FAA-2026-13869
- Autoridade
- FAA
- Data de emissão
- 09/07/2026
- Data efetiva
- —
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
09 de julho de 2026
Data Efetiva
Não informada
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA propõe revogar a Diretriz de Aeronavegabilidade (DA) 2023-07-09, que se aplica a certos aviões da série Model 747-400 e -8 da The Boeing Company. A DA 2023-07-09 exige inspeção quanto ao desgaste das válvulas de retenção da entrada do alojamento da bomba de transferência e dos adaptadores de entrada do rotor da bomba de transferência do motor do tanque de combustível do estabilizador horizontal e a execução de ações corretivas, se necessário, além de limitar a instalação de peças afetadas. Desde que a FAA emitiu a DA 2023-07-09, o fabricante desenvolveu ações adicionais para resolver a condição de segurança. Esta DA proposta exigiria inspeções repetitivas quanto a danos das válvulas de retenção da entrada do alojamento da bomba de transferência e dos adaptadores de entrada do rotor da bomba de transferência do motor do tanque de combustível do estabilizador horizontal e ações conforme aplicável. Esta DA proposta também limitaria a instalação de peças afetadas sob certas condições. A FAA está propondo esta DA para resolver a condição de segurança destes produtos.
The FAA proposes to supersede Airworthiness Directive (AD) 2023-07-09, which applies to certain The Boeing Company Model 747-400 and -8 series airplanes. AD 2023-07-09 requires inspecting for wear of the transfer pump housing inlet check valves and transfer pump motor impeller inlet adapters for the horizontal stabilizer fuel tank and doing corrective actions, if necessary, and limits the installation of affected parts. Since the FAA issued AD 2023-07-09, the manufacturer has developed further action to address the unsafe condition. This proposed AD would require repetitive inspections for damage of the transfer pump housing inlet check valves and transfer pump motor impeller inlet adapters for the horizontal stabilizer fuel tank and applicable on-condition actions. This proposed AD would also limit the installation of affected parts under certain conditions. 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-2026-7215; Project Identifier AD-2025-01558-T] • RIN 2120-AA64 ( printed page 42387) AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD) 2023-07-09, which applies to certain The Boeing Company Model 747-400 and -8 series airplanes. AD 2023-07-09 requires inspecting for wear of the transfer pump housing inlet check valves and transfer pump motor impeller inlet adapters for the horizontal stabilizer fuel tank and doing corrective actions, if necessary, and limits the installation of affected parts. Since the FAA issued AD 2023-07-09, the manufacturer has developed further action to address the unsafe condition. This proposed AD would require repetitive inspections for damage of the transfer pump housing inlet check valves and transfer pump motor impeller inlet adapters for the horizontal stabilizer fuel tank and applicable on-condition actions. This proposed AD would also limit the installation of affected parts under certain conditions. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this proposed AD by August 24, 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-2026-7215; 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, any comments received, and other information. The street address for Docket Operations is listed above. Material Incorporated by Reference: • For Boeing material identified in this proposed AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; telephone 562-797-1717; websitemyboeingfleet.com. • You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. It is also available atregulations.gov under Docket No. FAA-2026-7215. FOR FURTHER INFORMATION CONTACT: Samuel Dorsey, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3415; email: samuel.j.dorsey@faa.gov. …
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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