Special Conditions: Airbus Models A321 neo ACF and A321 neo XLR; Single-Occupant Oblique Seats With Pretensioner Restraint Systems

These special conditions are issued for the Airbus Model A321 neo ACF and A321 neo XLR airplanes. These airplanes 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 incorporates oblique (side-facing) passenger seats which may include a 3-point restraint system with pretensioner. These oblique seats may be installed at an angle of 18 to 45 degrees to the aircraft centerline and have surrounding furniture that introduces occupant and loading concerns. 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.