A new cost estimate on F-35 concurrency reveals a 24 percent drop or a reduction of $400 million over an 11-month period. Two primary factors have driven the cost-estimate reduction. The first is due to the removal of third-life testing teardown and inspection because that activity occurs at the end of the system development and demonstration phase, while the second component is attributed to originally forecasted issues that did not occur, according to F-35 spokeswoman Brandi Schiff. The F-35 joint...