2025-10837

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-2024-0190; Special Conditions No. 25-877-SC] AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions. SUMMARY: These special conditions are issued for the The Boeing Company (Boeing) Model 747-8 series airplane. This airplane, as modified by Boeing, 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 the installation of stairs for flightcrew to access the forward and aft lower lobe compartments during flight. These compartments will have two main functions: storage of service items and that of a Class C 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 July 14, 2025. FOR FURTHER INFORMATION CONTACT: Alan Sinclair, Technical Policy Branch, Policy and Standards Division, Aircraft Certification Service, Federal Aviation Administration, FAA Seattle Headquarters, 2200 South 216th Street, Des Moines, Washington 98198; telephone and fax 206-231-3215; email: alan.sinclair@faa.gov. SUPPLEMENTARY INFORMATION: Background On July 2, 2018, Boeing applied for a supplemental type certificate (STC) for the installation of stairs for inflight flightcrew to access the forward and aft lower lobe compartments that will have two main functions: access of service items that have been stored and that of a Class C cargo compartment in the Model 747-8 series airplane. The modified Boeing Model 747-8 series airplane, which is a derivative of the Model 747-8F series airplane currently approved under Type Certificate No. A20WE, is a four-engine, transport category airplane with a VIP interior configuration, not for common carriage, seating for 93 passengers and 15 flightcrew, and a maximum takeoff weight of 987,000 pounds. Type Certification Basis Under the provisions of title 14, Code of Federal Regulations (14 CFR) 21.101, Boeing must show that changes to the Boeing Model 747-8 series airplane, as changed, continues to meet the applicable provisions of the regulations listed in Type Certificate No. A20WE 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 Boeing Model 747-8 series airplanes 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 an STC 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 Boeing Model 747-8 series airplanes must comply with the exhaust-emission requirements of 14 CFR part 34, and the …

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