Dave Deptula, a retired three-star general, knows the risks associated with flying older aircraft. While serving as the joint task force commander in 1998 and 1999 for Operation Northern Watch, Deptula flew 82 combat missions over Iraq. On one mission, as he was headed to a tanker to refuel, the master caution light came on, revealing a problem with the plane. His fuel gauge went to zero. Meanwhile, he was 500 miles away from his base. Fortunately, he was able to land safely.“The insulation was so old it simply had deteriorated to the extent where it came off and all...