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
Special conditions are rules the FAA writes for one design when the standard certification rules do not cover something new about it. These were published April 16, 2026 for Honeywell Aerospace US LLC, covering the 757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series. System: electric propulsion.
What it applies to
- Applicant
- Honeywell Aerospace US LLC
- Makes
- The Boeing Company
- Models
- 757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series
- On this site
- Boeing 757 440 registered
- Published
- April 16, 2026
- Effective
- April 16, 2026
- The FAA's document
- On the FAA's site
The FAA's summary their words, unchanged
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.
Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.