The U.S. Army awarded Lockheed Martin a performance based logistics (PBL) contract, with a potential value of $380 million over four years, to support the Target Acquisition Designation Sight/Pilot Night Vision Sensor (TADS/PNVS) and Modernized TADS/PNVS systems on the AH-64 Apache helicopter. The contract provides complete post-production supply chain management, including spares planning, procurement, repairs, maintenance, modifications and inventory management of fielded systems. Support under the four-year contract will continue through 2010. The first year’s contract value is expected to be about $123 million. Lockheed Martin said the PBL program is intended to save operating and support costs by having the prime contractor assume responsibility for total performance of a weapon system. The program has performance metrics that will contribute to reducing the average flying/hour cost and the U.S. Army’s long-term inventory investment, the company said.