This test is used to evaluate the durability of the sample to receive impact forces applied to the seating positions over time. The sample will be secured as to insure impact location remains constant. Each seating position will be tested. Seating positions not being tested will be loaded with 225 lb. of dead weight. A test bag loaded with 125 lb. will be dropped 1 inch above the seat allowing for a free fall drop. Each seating position will undergo 100,000 cycles. The cycle rate will be set between 10 and 30 cycles per minute.