Proposed rule · 2026-21907

Special Conditions: Embraer S.A. Model ERJ 190-400 Airplane; Embraer Enhanced Takeoff System

This action proposes special conditions for the Embraer S.A. (Embraer) Model ERJ 190-400 series airplane. This airplane 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 a functionality known as the Embraer Enhanced Takeoff System (E\2\TS). The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed 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.