Sikorsky Aircraft Corp., Stratford, Conn., is being awarded a $17,668,830 firm-fixed-price modification to a previously awarded indefinite-delivery/indefinite-quantity contract (N00019-07-D-0004) to exercise an option for the fiscal 2011 VH-3D/VH-60N executive helicopter special progressive aircraft rework effort. Work will be performed in Stratford, Conn., and is expected to be completed in September 2011. Contract funds in the amount of $17,668,830 will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Md., is the contracting activity.