More details about the fuel system problems
Supplier Quality Control, Fuel System Integration Haunt KC-46
The latest charge against Boeing’s KC-46 aerial refueler program arose from overly optimistic certification planning and critical parts falling short of design specifications. This time, the $835 million pretax charge will pay for redesigns and retrofits required to address a faulty integrated fuel system, the heart of an aerial refueler. At least some of these defective parts came from suppliers, while other integration shortcomings are Boeing’s.
Ineffective quality control raises its ugly head once again.
http://aviationweek.com/defense/supp...on-haunt-kc-46