AMENDED Special Conditions: Jetstream Aircraft Limited Model 4100 Series \nAirplanes, Main Cabin Aisle Arrangement

These amended special conditions are issued to Jetstream Aircraft Limited for the Jetstream Model 4100 series airplanes. This airplane has a novel or unusual design feature associated with the main cabin aisle arrangement. Special Conditions No. 25-ANM-45 were issued on July 9, 1991 (to British Aerospace Public Limited Company (BAe)), addressing this unusual arrangement, and included a limitation on passenger capacity. The applicant has requested that Special Conditions No. 25-ANM-45 be amended to increase the passenger capacity limit from 29 to 30 passengers. Since Special Conditions No. 25-ANM-45 were issued, the applicant has changed the company name and revised the model number of the airplane. These amended special conditions reflect those changes. Since the applicable airworthiness regulations do not contain adequate or appropriate safety standards for this particular design feature, these amended special conditions contain the additional safety standards which the Administrator finds necessary to establish a level of safety equivalent to that established by the airworthiness standards for transport category airplanes