Data / Federal rules / 2025-18359
Special Conditions: H4 Aerospace (UK) Ltd, The Boeing Company Model 757-200 Series Airplane; Seats With Non-Traditional, Large, Non-Metallic Panels
The Federal Aviation Administration published this final rule in the Federal Register on September 23, 2025. It took effect on September 23, 2025. Comments closed on November 7, 2025.
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What the agency says
These special conditions are issued for The Boeing Company (Boeing) Model 757-200 series airplane. This airplane, as modified by H4 Aerospace (UK) Ltd (H4 Aerospace), will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards. This design feature is associated with seats that include non-traditional, large, non-metallic panels. 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.
Key facts
- Document number
- 2025-18359
- Type
- Final rule
- Action
- Final special conditions; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- September 23, 2025
- Takes effect
- September 23, 2025
- Comments due
- November 7, 2025
- Dates
- This action is effective on H4 Aerospace on September 23, 2025. Send comments on or before November 7, 2025.
- Docket
- Docket No. FAA-2025-2416; Special Conditions No. 25-884-SC
- Code of Federal Regulations
- 14 CFR 25
- Topics
- Aircraft; Aviation safety; Reporting and recordkeeping requirements
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on aircraft · Rules on aviation safety · Rules on reporting and recordkeeping requirements · Published in September 2025
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.