Special Conditions: Greenpoint Technologies, Inc., Boeing Model 787-8 Airplane; Dynamic Test Requirements for Single-Occupant, Side-Facing Seats With Airbag Devices in Shoulder Belts

These amended special conditions are issued for the Boeing Model 787-8 airplane. This amendment removes reference to leg-flail airbags and adds reference to leg-flail devices installed on side- facing seats. This airplane, as modified by Greenpoint Technologies, Inc. (Greenpoint), 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 single-occupant, side-facing seats with airbag devices in shoulder belts, and a floor-level, leg-flail-prevention device to limit the axial rotation of the upper leg. 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.