2023-16121

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-2022-1479; Project Identifier AD-2022-00703-T; Amendment 39-22497; AD 2023-13-12] • RIN 2120-AA64 ( printed page 49284) AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-100, 737-200, 737-200C, 737-300, 737-400, 737-500, 737-600, 737-700, 737-700C, 737-800, 737-900, 737-900ER, 757-200, 757-200PF, 757-200CB, 757-300, 767-200, 767-300, 767-300F, and 767-400ER series airplanes. This AD was prompted by reports indicating premature aging of certain passenger chemical oxygen generators. This AD requires repetitively replacing affected chemical oxygen generators with serviceable parts. This AD also limits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective September 5, 2023. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2022-1479; 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: Nicole S. Tsang, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3959; email: nicole.s.tsang@faa.gov. SUPPLEMENTARY INFORMATION: Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all The Boeing Company Model 737-100, 737-200, 737-200C, 737-300, 737-400, 737-500, 737-600, 737-700, 737-700C, 737-800, 737-900, 737-900ER, 757-200, 757-200PF, 757-200CB, 757-300, 767-200, 767-300, 767-300F, and 767-400ER series airplanes. The NPRM published in the Federal Register on December 9, 2022 (87 FR 75528). The NPRM was prompted by reports indicating premature aging of certain passenger chemical oxygen generators. In the NPRM, the FAA proposed to require repetitively replacing affected chemical oxygen generators with serviceable parts, and to limit the installation of affected parts. The FAA is issuing this AD to address the premature aging that resulted in the chemical oxygen generators failing to activate, which could fail to deliver oxygen during an emergency, possibly resulting in injury to the airplane occupants. Discussion of Final Airworthiness Directive Comments The FAA received comments from the Air Line Pilots Association, International, and The Boeing Company. Both commenters supported the NPRM without change. The FAA received additional comments from Delta Air Lines, American Airlines, United Airlines, and United Parcel Service. The following presents the comments received on the NPRM and the FAA's response to each comment. Request To Clarify Service Life of Affected Parts American Airlines requested clarification on why paragraph (i)(3) of the …

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