TFAB Ground Systems LLC*, Madison, Ala., was awarded a $76,812,703 modification (P00005) to contract W9124J-12-D-0011 for engine diagnostic systems to ensure readiness of Chinook and Blackhawk helicopter engines.  Funding and work performance location will be determined with each order.  Estimated completion date is May 24, 2018.  Army Contracting Command, Redstone Arsenal, Ala., is the contracting activity.