United States, July 14 -- ManTech Advanced Systems International Inc., Herndon, Virginia, is awarded a $49,814,138 modification (P00014) to a cost-plus-fixed-fee, cost reimbursable, indefinite-delivery/indefinite-quantity contract (N0042122D0101). This modification increases the contract ceiling to provide continued engineering and technical services, to include research, development, integration, analysis, acquisition, and technical training support, as well as configuration management, technical and programmatic documentation development, program management, and project planning in support of the Naval Air Systems Command Weaponeering Integration, Naval Air Training and Operating Procedures Standardization, and Naval Aviation Technical In...