Special Conditions: ALOFT AeroArchitects, Gulfstream Aerospace Corporation Model G-IV, GIV-X, GV, and GV-SP Airplanes; Rechargeable Lithium Batteries and Battery System Installations
Special conditions are rules the FAA writes for one design when the standard certification rules do not cover something new about it. These were published April 16, 2026 for Aloft Aeroarchitects, covering the G-IV, GIV-X, GV-SP. System: electric propulsion.
What it applies to
- Applicant
- Aloft Aeroarchitects
- Makes
- Gulfstream Aerospace Corporation
- Models
- G-IV, GIV-X, GV-SP
- On this site
- Gulfstream G-IV Gulfstream IV 360 registered
Gulfstream GIV-X G450 9 registered
Gulfstream GV-SP G550 7 registered - Published
- April 16, 2026
- Effective
- April 16, 2026
- The FAA's document
- On the FAA's site
The FAA's summary their words, unchanged
These special conditions are issued for the Gulfstream Aerospace Corporation (Gulfstream) Model G-IV, GIV-X, GV, and GV-SP series airplanes, as modified by ALOFT AeroArchitects (ALOFT). These airplanes 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 main ship rechargeable lithium battery. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These 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.
Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.