Lockheed Martin reveals lower than expected F-35 production

Production of F-35 fighter jets came in below expectations during the first quarter. Only six units were produced between January and March.
Output was slowed by several "administrative" factors. These included the process of transitioning between production lots and of getting acceptance for certain software. Lockheed's operational performance also suffered. Although sales were up, earnings dropped to USD794 million, down from USD878 million during the same quarter last year.
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