The U.S. Department of Defense says it has awarded Columbia City, Ind., a $9 million modification to a previously awarded firm-fixed-price contract.

The $9,693,000 modification allows for an option for 1,800 AN/SSQ-101A sonobuoys in support of Navy antisubmarine forces for the mission of detection, classification and localization of adversary submarines during peacetime and combat operations. Work will be performed in Columbia City (53 percent) and in DeLeon Springs, Fla. (47 percent), and is expected to be completed in November 2014.

Contract funds in the amount of $9,693,000 will be obligated on this award, $414,645 of which will expire at the end of the current fiscal year. The Naval Air Warfare Center Aircraft Division, Patuxent River, Md., is the contracting activity.