The Defense Department inspector general found that the F-35 joint program office provided insufficient oversight of prime contractor Lockheed Martin’s spare parts delivery and aircraft availability data and awarded millions of dollars in incentive fees based on "inflated and unverified data," according to a new report. The IG office, in an audit released last week , recommended the JPO seek compensation for the additional manpower hours required to manually address spare parts that were not ready to be used operationally...