FAA-2026-16504
Airworthiness Directives; The Boeing Company Airplanes
Resumo Rápido
- Número AD
- FAA-2026-16504
- Autoridade
- FAA
- Data de emissão
- 13/08/2026
- Data efetiva
- 17/09/2026
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
13 de agosto de 2026
Data Efetiva
17 de setembro de 2026
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA está revogando a Diretiva de Aeronavegabilidade (AD) 2018-11-14, que se aplicava a certos aviões da série Boeing Company Model 767-300 e -300F com certos winglets instalados. A AD 2018-11-14 exigia inspeções por correntes parasitas de alta frequência (HFEC) para detectar trincas na asa inferior externa e reparo ou modificação se necessário. A AD 2018-11-14 também exigia uma de três ações de acompanhamento: repetição das inspeções HFEC; modificação de certos reforçadores internos e sobretamanho e travamento dos furos de fixadores existentes da asa inferior; ou modificação do reforço/triplicador externo e execução de inspeções pós-modificação repetitivas. Esta AD foi motivada por relatórios de trincas por fadiga na asa inferior externa no fixador interno do reforçador L-9.5 e na asa inferior externa do reforçador L-6.5, em aviões com winglets instalados conforme Certificado de Tipo Suplementar (STC) ST01920SE. Esta AD também foi motivada pela determinação de que, para certos aviões, a área da asa inferior nas proximidades dos fixadores internos críticos dos reforços de reparo instalados deve ser inspecionada. Esta AD mantém a exigência das ações na AD 2018-11-14, adiciona à aplicabilidade aviões que tiveram o STC ST01920SE instalado e os winglets do STC removidos e, para certos aviões, exige inspeções HFEC internas e externas repetitivas da asa inferior externa comum ao reparo de reforço externo no reforçador L-9.5 e reparo se necessário. A FAA está emitindo esta AD para resolver a condição insegura destes produtos.
The FAA is superseding Airworthiness Directive (AD) 2018-11- 14, which applied to certain The Boeing Company Model 767-300 and -300F series airplanes with certain winglets installed. AD 2018-11-14 required high frequency eddy current (HFEC) inspections for cracking of the lower outboard wing skin and repair or modification if necessary. AD 2018-11-14 also required one of three follow-on actions: Repeating the HFEC inspections; modifying certain internal stringers and oversizing and plugging the existing fastener holes of the lower wing; or modifying the external doubler/tripler and doing repetitive post- modification inspections. This AD was prompted by reports of fatigue cracking in the lower outboard wing skin at the inboard fastener of stringer L-9.5, and the lower outboard wing skin of stringer L-6.5, on airplanes with winglets installed per Supplemental Type Certificate (STC) ST01920SE. This AD was also prompted by a determination that, for certain airplanes, the area of the lower wing skin in the vicinity of the critical inboard end fasteners of installed repair doublers must be inspected. This AD continues to require the actions in AD 2018-11-14, adds to the applicability airplanes that have had STC ST01920SE installed and the STC winglets removed, and, for certain airplanes, requires repetitive internal and external HFEC inspections of the lower outboard wing skin common to the external doubler repair at stringer L- 9.5 and repair if necessary. 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-2026-0023; Project Identifier AD-2025-00427-T; Amendment 39-23436; AD 2026-16-06] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2018-11-14, which applied to certain The Boeing Company Model 767-300 and -300F series airplanes with certain winglets installed. AD 2018-11-14 required high frequency eddy current (HFEC) inspections for cracking of the lower outboard wing skin and repair or modification if necessary. AD 2018-11-14 also required one of three follow-on actions: Repeating the HFEC inspections; modifying certain internal stringers and oversizing and plugging the existing fastener holes of the lower wing; or modifying the external doubler/tripler and doing repetitive post-modification inspections. This AD was prompted by reports of fatigue cracking in the lower outboard wing skin at the inboard fastener of stringer L-9.5, and the lower outboard wing skin of stringer L-6.5, on airplanes with winglets installed per Supplemental Type Certificate (STC) ST01920SE. This AD was also prompted by a determination that, for certain airplanes, the area of the lower wing skin in the vicinity of the critical inboard end fasteners of installed repair doublers must be inspected. This AD continues to require the actions in AD 2018-11-14, adds to the applicability airplanes that have had STC ST01920SE installed and the STC winglets removed, and, for certain airplanes, requires repetitive internal and external HFEC inspections of the lower outboard wing skin common to the external doubler repair at stringer L-9.5 and repair if necessary. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective September 17, 2026. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of September 17, 2026. The Director of the Federal Register approved the incorporation by reference of certain other publications listed in this AD as of July 10, 2018 (83 FR 25885, June 5, 2018). ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2026-0023; 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. Material Incorporated by Reference: • For Aviation Partners Boeing material identified in this AD, contact Aviation Partners Boeing, 555 Andover Park West, Suite 200, Tukwila, Washington 98188; telephone 206-830-7699; emailcertification@aviationpartners.com; website aviationpartnersboeing.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-2026-0023. FOR FURTHER INFORMATION CONTACT: …
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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