Federal Register #FAA-2026-3490

FAA Special Conditions for Lithium Battery Installations on Gulfstream Aircraft Modified by ALOFT AeroArchitects

This notice from the Federal Aviation Administration (FAA) outlines new regulatory requirements for certain Gulfstream aircraft modified by ALOFT AeroArchitects: - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEMs Involved: - Gulfstream Aerospace Corporation (manufacturer of G-IV, GIV-X, GV, and GV-SP aircraft) - ALOFT AeroArchitects (modifier of aircraft) - Products/Services: - No procurement of products or services; the notice establishes regulatory special conditions - Focus is on the installation of main ship rechargeable lithium batteries in specified Gulfstream aircraft models - Unique/Notable Requirements: - Special conditions address safety standards for lithium battery installations - Requirements for thermal management, hazardous failure prevention, fire protection, and automatic safety features - Applies to Gulfstream G-IV, GIV-X, GV, and GV-SP series aircraft as modified by ALOFT AeroArchitects - No specific part numbers, quantities, or procurement actions are included; this is a regulatory notice, not a solicitation or award - Locations: - FAA offices and Department of Transportation referenced as regulatory authorities - No delivery or performance locations specified, as this is not a procurement action

Description

These special conditions are issued for the Gulfstream Aerospace Corporation Model G-IV, GIV-X, GV, and GV-SP series airplanes, as modified by ALOFT AeroArchitects. The airplanes feature a novel design with main ship rechargeable lithium batteries, which are not adequately covered by existing airworthiness regulations. The special conditions establish additional safety standards to ensure a level of safety equivalent to current standards, addressing issues such as thermal management, failure modes, and fire protection related to lithium battery installations.

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