2021-26544

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-2021-0573; Project Identifier 2018-CE-046-AD; Amendment 39-21822; AD 2021-24-01] • RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Pilatus Aircraft Ltd. (Pilatus) Model PC-12/45, PC-12/47, and PC-12/47E airplanes with Supplemental Type Certificate (STC) SA00634DE installed. This AD was prompted by a report of strake attachment brackets and the fuselage frame failing at the upper most bracket attachment location. This AD requires inspecting the strake, attachment brackets, surrounding structure, and bolts and replacing components and repairing damage if necessary. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective January 13, 2022. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of January 13, 2022. ADDRESSES: For service information identified in this final rule, contact Pilatus Business Aircraft Ltd., Customer Support Department, 12300 Pilatus Way, Broomfield, CO 80021; phone: (866) 721-2435; fax: (303) 465-9099; email: productsupport@pilbal.com. You may view this service information 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 (816) 329-4148. It is also available at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0573. Examining the AD Docket You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0573; 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: Richard R. Thomas, Aviation Safety Engineer, Denver ACO Branch, FAA, 26805 E 68th Avenue, Denver, CO 80249; phone: (303) 342-1080; fax: (303) 342-1088; email: 9-Denver-Aircraft-Cert@faa.gov. SUPPLEMENTARY INFORMATION: ( printed page 69997) Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to Pilatus Aircraft Ltd. Model PC-12/45, PC-12/47, and PC-12/47E airplanes with STC SA00634DE installed. The NPRM published in the Federal Register on July 22, 2021 (86 FR 38613). The NPRM was prompted by a report of strake attachment brackets and the fuselage frame failing at the upper most bracket attachment location. In the NPRM, the FAA proposed to require inspecting the strake, attachment brackets, and bolts for movement and damage, both internal and external, and replacing components and repairing damage if necessary. The FAA is issuing this AD to prevent buffeting of the strakes. This condition, if not addressed, co…

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