The U.S. Air Force announced that the KC-46 flying with a modified boom has managed to refuel a C-17 in mid-air and the previously observe axial loading issues were not present this time.
The testing was carried out on Jul. 12 and the service also refuel a F-16 on Jul. 8. The press release said higher than expected axial loads were detected during earlier tests with the F-16, the hardware modifications on the boom has managed to alleviate the loads.