L-3 Communications Corp., Waco, Texas, is being awarded an $84,490,492 not-to-exceed modification to a previously awarded indefinite-delivery/indefinite-quantity multiple award contract (N00019-05-D-0008) for the continued airframe sustainment support necessary for the performance of phase depot maintenance, special structural inspections, special structural inspection kits and installations, and modification installations. Work will be performed in Waco, Texas (96 percent), and Greenville, S.C. (4 percent), and is expected to be completed in December 2012. Contract funds will not expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Md., is the contracting activity.