September 16, 2019 | International, Aerospace
USAF Identifies Critical New KC-46 Design Flaw
By Steve Trimble The U.S. Air Force has identified a potential new design flaw with the KC-46A tanker and banned the fleet from carrying cargo or passengers until a solution is found and delivered. Multiple cargo locks embedded in the floor of the aircraft released inadvertently during a recent operational test and evaluation flight, according to a statement by Air Mobility Command (AMC). Air Force and Boeing officials are working to identify a solution to the problem, AMC says. An uncommanded release of the cargo locks could allow pallets of cargo or passenger seats to shift position during flight, potentially changing the center of gravity of the aircraft. In response, the Air Force generated the third unresolved Category 1 deficiency report charged to the KC-46 program, AMC says. A Category 1 deficiency reflects an identified risk that jeopardizes lives or critical assets. The Air Force agreed to accept the first KC-46 last January despite two Category 1 deficiencies still pending. Boeing is implementing an Air Force-funded design change to the actuator on the refueling boom to make it more sensitive to smaller receiver aircraft, such as A-10s and F-16s. Meanwhile, Boeing has submitted a proposed redesign of the remote vision system (RVS) to correct what the Air Force calls a “rubber sheeting” affect that distorts the image on the visual display used by the boom operator during refueling operations. Boeing has agreed to pay for an RVS design that received approval by the Air Force. https://aviationweek.com/defense/usaf-identifies-critical-new-kc-46-design-flaw