The Boeing-built KC-46 has a new Category 1 deficiency involving excessive fuel leaks, which was first identified during an air refueling test last July. In a statement today, Air Force spokeswoman Capt. Cara Bousie announced the service had upgraded the classification of the known deficiency to Category 1. She said Boeing is responsible for the cost to fix the fuel leak issue. "The Air Force and Boeing are working together to determine the root cause and implement corrective actions," Bousie...