National Steel and Shipbuilding Co., San Diego, Calif., is being awarded an $8,099,383 modification to previously awarded contract (N00024-06-C-4402) for the repair and alteration for the Non-Docking Scheduled Availability of the USS Pearl Harbor (LSD-52). The contractor will furnish the material, support (electrical, crane, and rigging), and facilities necessary for the maintenance and modernization of the LSD/LPD class ships. This availability includes inspection and preservation of the Potable Water Tank, repair of the Ballast Tanks, and the 5-year strength and integrity inspection of the Auxiliary Boiler No. 2. Work will be performed in San Diego, Calif., and is expected to be completed by Apr. 2009. Contract funds in the amount of $7,556,652 will expire at the end of the current fiscal year. The Southwest Regional Maintenance Center, San Diego, Calif., is the contracting activity.