# 2026-01642: Special Conditions: Safran Electric & Power S.A. ENGINeTM US100 Series Electric Engines

2026-01642, Special Conditions: Safran Electric & Power S.A. ENGINeTM US100 Series Electric Engines, is a Federal Register rule from Transportation Department, Federal Aviation Administration published 2026-01-27, effective 2026-01-27 (as of 2026-06-11).

- Canonical: https://policyrisk.com/federal-register/2026-01642
- As of: 2026-06-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-01642
- Title: Special Conditions: Safran Electric & Power S.A. ENGINeTM US100 Series Electric Engines
- Type: Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 3360
- Published: 2026-01-27
- Effective: 2026-01-27
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-11

## Summary

The FAA is updating safety rules to cover Safran’s new ENGINe US100 series electric airplane engines, which use electric motors and high-voltage systems instead of traditional engines. This change makes sure these cool, high-tech engines meet safety standards just like regular engines. The new rules take effect January 27, 2026, and affect Safran and anyone using these electric engines.

## Abstract

This action amends the applicability of special conditions that were issued for the Safran Electric & Power S.A. Model ENGINe US100A1 electric engines. These engines have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards applicable to aircraft engines. The design feature is the use of an electric motor, motor controller, and high- voltage systems as the primary source of propulsion for an aircraft. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. This action amends the applicability of Special Conditions No. 33-23-01-SC, dated December 27, 2024, which 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, to include the ENGINe US100 series electric engines.

## Effects PRIA read

No economic effects identified for this document.

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## Sources
- [2026-01642 on federalregister.gov](https://www.federalregister.gov/documents/2026/01/27/2026-01642/special-conditions-safran-electric-and-power-sa-enginetm-us100-series-electric-engines)
- [2026-01642 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-01-27/pdf/2026-01642.pdf)

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Source: PRIA, https://policyrisk.com/federal-register/2026-01642 (as of 2026-06-11).