2024-29432

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 25 • [Docket No. FAA-2024-1310; Special Conditions No. 25-873-SC] AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions. SUMMARY: These special conditions are issued for the Airbus Model A350-941 airplane. This airplane, as modified by Aerocon Engineering Company (Aerocon), will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is an installation of a lower lobe crew rest (LLCR) compartment located under the passenger cabin floor in the cargo compartment. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards. DATES: Effective December 13, 2024. FOR FURTHER INFORMATION CONTACT: Daniel Jacquet, Cabin Safety, AIR-624, Technical Policy Branch, Policy and Standards Division, Aircraft Certification Service, Federal Aviation Administration, 2200 South 216th Street, Des Moines, Washington 98198; telephone and fax (206) 231-3208; email daniel.jacquet@faa.gov. SUPPLEMENTARY INFORMATION: Background On August 27, 2021, Aerocon applied for a supplemental type certificate for a LLCR installation in the Model A350-941 airplane. The Airbus Model A350-941 airplane is a twin-engine, transport-category airplane with a maximum takeoff weight of 623,908 pounds and maximum seating for 480 passengers. Type Certification Basis Under the provisions of 14 CFR 21.101, Aerocon must show that the Airbus Model A350-941 airplane, as changed, continues to meet the applicable provisions of the regulations listed in Type Certificate No. T000631B or the applicable regulations in effect on the date of application for the change, except for earlier amendments as agreed upon by the FAA. If the Administrator finds that the applicable airworthiness regulations ( e.g.,14 CFR part 25) do not contain adequate or appropriate safety standards for the Airbus A350-941 airplane because of a novel or unusual design feature, special conditions are prescribed under the provisions of § 21.16. Special conditions are initially applicable to the model for which they are issued. Should the applicant apply for a supplemental type certificate to modify any other model included on the same type certificate to incorporate the same novel or unusual design feature, these special conditions would also apply to the other model under § 21.101. In addition to the applicable airworthiness regulations and special conditions, the Airbus A350-941 series airplane must comply with the exhaust-emission requirements of 14 CFR part 34, and the noise-certification requirements of 14 CFR part 36. The FAA issues special conditions, as defined in 14 CFR 11.19, in accordance with § 11.38, and they become part of the type certification basis under § 21.101. Novel or Unusual Design Features The Airbus A350-941 airplane will incorporate the following novel or unusual design feature: The installation of a LLCR under the passenger cabin floor in the cargo compartment. …

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