NASA's Exploration Ground Systems - @NASAGroundSys Upper stage is now in fast fill at 58% liquid hydrogen filled. Liquid oxygen for both upper and core stage

NASA's Exploration Ground Systems - @NASAGroundSys Upper stage is now in fast fill at 58% liquid hydrogen filled. Liquid oxygen for both upper and core stage are in stable replenish. --NASA's Exploration Ground Systems - @NASAGroundSys The 'red crew' team has successfully remedied the leak, and it has not recurred. Bad ethernet switch is being replaced now.