Special Conditions: Embraer S.A., Model ERJ-170 Airplanes; Seats With Large, Non-Traditional, Non-Metallic Panels

These special conditions are issued for Embraer Model ERJ-170 airplanes. This airplane will have a novel or unusual design feature associated with interior arrangements that include passenger seats that incorporate non-traditional, large, non-metallic panels in lieu of the traditional metal frame covered by fabric. 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.