FAA-2025-16190
Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes
Resumo Rápido
- Número AD
- FAA-2025-16190
- Autoridade
- FAA
- Data de emissão
- 25/08/2025
- Data efetiva
- 29/09/2025
- Criticidade
- routine
Autoridade
Federal Aviation Administration (EUA)
Data de Publicação
25 de agosto de 2025
Data Efetiva
29 de setembro de 2025
Prazo de Cumprimento
Antes do próximo voo
Resumo da Diretiva
A FAA está revogando a Diretiva de Aeronavegabilidade (AD) 2022-23-08, que se aplicava a todos os aviões Viking Air Limited (Viking) Modelo DHC-3. A AD 2022-23-08 exigia inspeção visual do atuador do estabilizador para confirmar que o anel de travamento do atuador do estabilizador está presente, corretamente posicionado no sulco da carcaça superior e engatado na porca de aperto, ações corretivas aplicáveis, aplicação de lacre de torque e envio dos resultados da inspeção à FAA. Desde a emissão da AD 2022-23-08, a Transport Canada, que é a autoridade de aviação do Canadá, emitiu informações obrigatórias de aeronavegabilidade continuada (MCAI) para abordar a condição insegura identificada como anel de travamento do atuador do estabilizador ausente. Esta AD exige inspeção repetitiva do atuador do estabilizador para confirmar que o anel de travamento do atuador do estabilizador está presente, corretamente posicionado no sulco da carcaça superior e engatado na porca de aperto; realização de ações corretivas aplicáveis; aplicação de marca testemunha (lacre de torque); e instalação de dispositivo de retenção secundário como ação terminante para as inspeções repetitivas. Esta AD também proíbe a instalação de qualquer atuador do estabilizador a menos que seja uma peça servicável. A FAA está emitindo esta AD para abordar a condição insegura nesses produtos.
The FAA is superseding Airworthiness Directive (AD) 2022-23- 08, which applied to all Viking Air Limited (Viking) Model DHC-3 airplanes. AD 2022-23-08 required a visual inspection of the stabilizer actuator to confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing, and engaged in the clamp nut, applicable corrective actions, application of a torque seal, and sending the inspection results to the FAA. Since the FAA issued AD 2022-23-08, Transport Canada, which is the aviation authority for Canada, issued mandatory continuing airworthiness information (MCAI) to address the unsafe condition identified as a missing stabilizer actuator lock ring. This AD requires repetitively inspecting the stabilizer actuator to confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing, and engaged in the clamp nut; taking applicable corrective actions; applying a witness mark (torque seal); and installing a secondary retention feature as terminating action for the repetitive inspections. This AD also prohibits installing any stabilizer actuator unless it is a serviceable part. 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-2025-1107; Project Identifier MCAI-2024-00784-A; Amendment 39-23118; AD 2025-17-08] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ( printed page 41291) SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2022-23-08, which applied to all Viking Air Limited (Viking) Model DHC-3 airplanes. AD 2022-23-08 required a visual inspection of the stabilizer actuator to confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing, and engaged in the clamp nut, applicable corrective actions, application of a torque seal, and sending the inspection results to the FAA. Since the FAA issued AD 2022-23-08, Transport Canada, which is the aviation authority for Canada, issued mandatory continuing airworthiness information (MCAI) to address the unsafe condition identified as a missing stabilizer actuator lock ring. This AD requires repetitively inspecting the stabilizer actuator to confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing, and engaged in the clamp nut; taking applicable corrective actions; applying a witness mark (torque seal); and installing a secondary retention feature as terminating action for the repetitive inspections. This AD also prohibits installing any stabilizer actuator unless it is a serviceable part. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective September 29, 2025. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of September 29, 2025. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2025-1107; 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, the MCAI, 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 Transport Canada material identified in this AD, contact Transport Canada, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario, K1A 0N5, Canada; phone: (888) 663-3639; email:TC.AirworthinessDirectives-Consignesdenavigabilite.TC@tc.gc.ca; website: tc.canada.ca/en/aviation. • You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222-5110. It is also available atregulations.gov under Docket No. FAA-2025-1107. FOR FURTHER INFORMATION CONTACT: Brenda Buitrago, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (516) 228-7368; email: brenda.l.buitrago.perez@faa.gov. SUPPLEMENTARY INFORMATION: …
Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.
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