HUNTSVILLE, Ala.-- Lockheed Martin [LMT] Feb. 20 said it received a $92 million Performance Based Logistics (PBL) contract in December 2013 from the Army to sustain the AH-64 Apache helicopter Modernized Target Acquisition Designation Sight/Pilot Night Vision Sensor (M-TADS/PNVS) system. This is the second of three one-year options that support the initial $111 million PBL contract awarded in 2012. The total four-year contract value is $375 million. The firm, fixed-price contract is the foundation for a comprehensive sustainment solution that…