Posted: 04/21/2008 - SEATTLE (AP) -- Aviation Capital Group has ordered 17 Boeing 737s. It's the aircraft leasing company's eighth purchase commitment for Boeing planes in two years. The deal announced Monday is valued at more than $1 billion at current list prices, although customers typically negotiate big discounts on large orders. The order by Aviation Capital was previously attributed to an unidentified customer on the Chicago-based aerospace company's Web site. Aviation Capital is a California subsidiary of Pacific LifeCorp. A Boeing spokesman says the order's for Boeing 737-800s with options to convert to 737-700s or 737-900s. The deal brings Aviation Capital's total orders of Boeing planes to 81.