Air Mobility Command chief Gen. Carlton Everhart told reporters Tuesday that a KC-46 boom-scraping issue -- recently characterized as a category-one deficiency -- could delay initial deliveries of the new tanker. The Air Force is closely tracking the incidents in which the tanker's aerial refueling probe scrapes its receiver jet, sometimes causing damage, Everhart said during a Sept. 19 media roundtable here. Similar scraping occurs occasionally during refueling operations, but is particularly concerning when it involves the stealth coating of...