2022-03805

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-2022-0144; Project Identifier AD-2022-00042-T; Amendment 39-21952; AD 2022-05-01] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain Learjet, Inc., Model 35, 35A (C-21A), 36, 36A, 55, 55B, 55C, and 60 airplanes. This AD was prompted by a report indicating that a repair station approved Learjet spoiler assemblies for return to service after extending their life limit. This AD requires removing certain spoiler assemblies from service and prohibits their installation. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective March 9, 2022. The FAA must receive comments on this AD by April 8, 2022. 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 https://www.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. Examining the AD Docket You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2022-0144; 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 street address for Docket Operations is listed above. FOR FURTHER INFORMATION CONTACT: Tara Shawn, Aerospace Engineer, Airframe and Services Section, FAA, Wichita ACO Branch, 1801 Airport Road, Room 100, Wichita, KS 67209; phone: 316-946-4141; email: Tara.Shawn@faa.gov. SUPPLEMENTARY INFORMATION: Background On September 14, 2021, the FAA Kansas City Flight Standards District Office (FSDO) received a report that a repair station, Restored Aircraft Sales and Service, LLC, had approved several Learjet spoiler assemblies for return to service after completing a life limit extension. The Kansas City FSDO notified the Wichita ACO Branch of this issue on September 22, 2021. Investigation by the Kansas City FSDO and Wichita ACO Branch revealed that after overhauling or repairing spoiler assemblies for Learjet airplanes, the repair station extended the FAA-approved life limit of the spoiler assemblies, in some cases by ( printed page 9428) doubling, the life limit established by Learjet in the airworthiness limitations section of the instructions for continued airworthiness. This maintenance on the spoiler assemblies performed by the repair station constituted a major change in type design. Since the repair station does not hold t…

Fonte: Federal Register (federalregister.gov). Texto original em inglês. Conteúdo sanitizado por segurança.