Some ribbon-cuttings can be routine affairs, but not when one of the world's biggest aerospace companies is involved and when in it's in your own back yard. Top executives from Los Angeles-based Northrop Grumman Corp., along with state and city officials, will officially open Northrop Grumman's 130,000-square-foot office building at 4 p.m. Wednesday in Colorado Springs. The building is part of the Colorado Springs Airport's 1,000-acre business park, which is taking shape east of Powers Boulevard and Milton E. Proby Parkway on the city's far southeast side. Northrop Grumman will consolidate hundreds of its Springs-area workers into the new building. Among those expected to attend: Colorado Springs Mayor Lionel Rivera; Don Elliman, director of Colorado's Office of Economic Development and International Trade; John Faulkner, the city's assistant aviation director; Philip A. Teel, Northrop Grumman corporate vice president and president of Northrop Grumman Mission Systems sector; and Tim McMahon, Northrop Grumman corporate lead executive for the Colorado Springs region.