Federal Register #2026-22951

FAA safety standards for Gulfstream GVII-G400 takeoff stall protection

The FAA established aircraft safety certification standards for the Gulfstream GVII-G400’s takeoff stall-protection function. - Government buyer and issuing agency: U.S. Department of Transportation, Federal Aviation Administration (FAA); no specific sub-agency or office is identified. - OEM and aircraft manufacturer: Gulfstream Aerospace Corporation (Gulfstream; gulfstream.com), manufacturer of the Model GVII-G400. - Scope: Special conditions for the aircraft’s electronic flight control system envelope-protection function, intended to prevent excessive or rapid rotation during takeoff. - Key safety requirements: - Protection must not unduly restrict maneuvering or interfere with normal or emergency operations. - Activation characteristics must suit the flight phase and maneuver. - Parameter excursions, atmospheric disturbances, or simultaneous protection functions must not cause unsafe effects. - The function must not hinder recovery from abnormal flight conditions. - This is a certification and aviation-safety notice, not a procurement solicitation. No products, services, quantities, or part numbers are requested.

Description

The FAA issued special conditions for the Gulfstream Aerospace Corporation Model GVII-G400 airplane, which incorporates an electronic flight control system envelope-protection function intended to prevent over-rotation and rapid rotation during takeoff. The conditions establish additional safety standards because existing airworthiness regulations do not provide adequate or appropriate standards for this feature. They address maneuvering capability, onset characteristics, flight-parameter excursions, atmospheric disturbances, simultaneous activation, and recovery from abnormal conditions. Comments are requested by December 28, 2026.

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