2022-08694
Airworthiness Directives; The Boeing Company Airplanes
Resumo Rápido
- Número AD
- 2022-08694
- Autoridade
- FAA
- Data de emissão
- 25/04/2022
- Data efetiva
- 31/05/2022
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
25 de abril de 2022
Data Efetiva
31 de maio de 2022
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA está substituindo a Diretriz de Aeronavegabilidade (AD) 2016-09-01, que se aplicava a certos aviões da série Model 777-200 e -300 da The Boeing Company. A AD 2016-09-01 exigia inspeções repetitivas para detecção de trincas dos reforços externos dianteiros dos lados esquerdo e direito do anteparo de pivô, e ações investigativas e corretivas relacionadas, se necessário. A AD 2016-09-01 também fornecia uma modificação do anteparo de pivô, que encerrava as inspeções repetitivas. Esta AD foi originada por relatos de trincas de fadiga do reforço externo dianteiro do anteparo de pivô da estação (STA) 2370, e pela determinação de que os prazos de conformidade precisam ser reduzidos, inspeções pós-modificação devem ser realizadas, e as áreas de inspeção precisam ser expandidas devido a trincas adicionais encontradas antes dos prazos de inspeção exigidos pela AD 2016-09-01. Esta AD retém certos requisitos da AD 2016-09-01. Esta AD também exige a realização de inspeções repetitivas detalhadas e de corrente parasita de alta frequência (HFEC) do encaixe do longarina e, para inspeções pós-reparo e pós-modificação, da estrutura do conjunto do anteparo, para qualquer trinca, e a execução de todas as ações aplicáveis conforme a condição. A FAA está emitindo esta AD para resolver a condição insegura destes produtos.
The FAA is superseding Airworthiness Directive (AD) 2016-09- 01, which applied to certain The Boeing Company Model 777-200 and -300 series airplanes. AD 2016-09-01 required repetitive inspections for cracking of the left- and right-side forward outer chords of the pivot bulkhead, and related investigative and corrective actions if necessary. AD 2016-09-01 also provided a modification of the pivot bulkhead, which terminated the repetitive inspections. This AD was prompted by reports of fatigue cracking of the forward outer chord of the station (STA) 2370 pivot bulkhead, and the determination that the compliance times need to be reduced, post-modification inspections must be done, and the inspections areas need to be expanded due to additional cracking found prior to the inspection times required by AD 2016-09-01. This AD retains certain requirements of AD 2016-09-01. This AD also requires doing repetitive detailed and high frequency eddy current (HFEC) inspections of the longeron fitting, and, for post- repair and post-modification inspections, the bulkhead assembly structure, for any cracking, and doing all applicable on-condition actions. 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-2021-0828; Project Identifier AD-2021-00303-T; Amendment 39-21973; AD 2022-06-07] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2016-09-01, which applied to certain The Boeing Company Model 777-200 and -300 series airplanes. AD 2016-09-01 required repetitive inspections for cracking of the left- and right-side forward outer chords of the pivot bulkhead, and related investigative and corrective actions if necessary. AD 2016-09-01 also provided a modification of the pivot bulkhead, which terminated the repetitive inspections. This AD was prompted by reports of fatigue cracking of the forward outer chord of the station (STA) 2370 pivot bulkhead, and the determination that the compliance times need to be reduced, post-modification inspections must be done, and the inspections areas need to be expanded due to additional cracking found prior to the inspection times required by AD 2016-09-01. This AD retains certain requirements of AD 2016-09-01. This AD also requires doing repetitive detailed and high frequency eddy current (HFEC) inspections of the longeron fitting, and, for post-repair and post-modification inspections, the bulkhead assembly structure, for any cracking, and doing all applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective May 31, 2022. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of May 31, 2022. ADDRESSES: For service information identified in this final rule, 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; internet https://www.myboeingfleet.com. You may view this service information 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 at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0828. Examining the AD Docket You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0828; 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 address for Docket Operations is U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Luis Cortez-Muniz, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: (206) 231-3958; email: Luis.A.Cortez-Muniz@faa.gov. SUPPLEMENTARY INFORMATION: Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2016-09-01, Amendment 39-18499 (81 FR 26109, May 2, 2016) (AD 2016-09-01). AD 2016-09-01 applied to cert…
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
Documentos e Referências
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