Special Conditions: Embraer S.A. Model ERJ 190-400 Airplane; Embraer Enhanced Takeoff System
Key claim: The FAA is proposing extra safety standards for Embraer’s ERJ 190-400 airliner because its Enhanced Takeoff System is not covered by existing transport-airplane certification rules.
Abstract
(Proposed Rule · Transportation Department, Federal Aviation Administration) 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.
Why this matters
FAA special conditions are the standard mechanism for certifying novel aircraft features that fall outside existing airworthiness rules. The Embraer ERJ 190-400’s Enhanced Takeoff System triggers one such carve-out, extending the pattern already seen with other recent transport-airplane and propulsion certification updates. The practical safety effect is confined to this one type certification, but it illustrates how FAA keeps pace with manufacturer-specific technology changes.