The contract funds key sustainment activities, including depot level maintenance and repair, replenishment of spare parts, material management, propulsion system integration, engineering support, and software sustainment for the U.S. and international customers. "Investing in F135 sustainment keeps allied forces ready to meet current and future threats," said Kinda Eastwood, vice president of F135 Sustainment at Pratt & Whitney. "F-35 operators worldwide depend on the F135 for the power and performance thei ...