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.

Rockford's Hamilton-Sundstrand produces parts for systems on the 737.

The deal brings Aviation Capital's total orders of Boeing planes to 81.