Data / Federal rules / 2026-07484
Special Conditions: Honeywell International Inc., Boeing Model 757-200, 757-200PF, 757-200CB, and 757-300 Airplanes; Non-Rechargeable Lithium Batteries and Battery System Installation
The Federal Aviation Administration published this final rule in the Federal Register on April 16, 2026. It took effect on April 16, 2026. Comments closed on June 1, 2026.
SpecStream is the live web data engine for teams and agents. It reads every rule and proposed rule in the Federal Register each morning, and this page is that reading. Name your industry once and new rules, comment deadlines and effective dates arrive in your sheet, CRM, Slack or agent as they are published.
What the agency says
These special conditions are issued for the Boeing Company (Boeing) 757 series airplane models 757-200, 757-200PF, 757-200CB, and 757-300. These airplanes, as modified by Honeywell International, Inc. (Honeywell), 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 for the installation of non-rechargeable lithium batteries in an underwater locator beacon (ULB). 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
- 2026-07484
- Type
- Final rule
- Action
- Final special conditions; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- April 16, 2026
- Takes effect
- April 16, 2026
- Comments due
- June 1, 2026
- Dates
- This action is effective on Honeywell on April 16, 2026. Send comments on or before June 1, 2026.
- Docket
- Docket No. FAA-2026-3506; Special Conditions No. 25-889-SC
- Code of Federal Regulations
- 14 CFR 25
- Topics
- Aircraft; Aviation safety; Reporting and recordkeeping requirements
- Pages
- 3
Other documents from the Federal Aviation Administration
| Document | Type | Published |
|---|---|---|
| Airworthiness Directives; The Boeing Company Airplanes; Correction 2026-21686 | Final rule | Oct 23 |
| Airworthiness Directives; MD Helicopters, LLC Helicopters 2026-21664 | Final rule | Oct 23 |
| Airworthiness Directives; General Electric Company Engines 2026-21590 | Final rule | Oct 22 |
| Establishment of Class E Airspace; Havana, IL 2026-21565 | Final rule | Oct 22 |
| Revocation of Class E Airspace; Santa Elena, TX 2026-21564 | Final rule | Oct 22 |
| Establishment of Class E Airspace; DeKalb, IL 2026-21563 | Final rule | Oct 22 |
| Airspace Designations; Incorporation by Reference Amendment of FAA Order JO 7400.11M 2026-21422 | Final rule | Oct 20 |
| Airworthiness Directives; Airbus Helicopters 2026-21387 | Proposed rule | Oct 19 |
Everything from the Federal Aviation Administration · Rules on aircraft · Rules on aviation safety · Rules on reporting and recordkeeping requirements · Published in April 2026
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.