The Air Force has taken on millions in losses because personnel lack training to adequately identify defective parts or correctly seek restitution from contractors, according to a recent report from the Pentagon’s inspector general. In one case, service officials failed to obtain compensation for 45 bad spare parts related to the C-130J Super Hercules, valued at $5.9 million in total. Under the warranty plan for that aircraft, once deficient parts are identified, reporting personnel should send the items back to...