Zumwalt-class destroyer Michael Monsoor (DDG-1001) needs its main turbine engine to be replaced. Ship has suffered damage from turbine blades during acceptance trials according to USNI News. MT30 marine gas turbine showed no signs of malfunctioning during the sea trials, but the damage was found in a post-trials inspection. The ship engine will be restored before its sails to San Diego for its combat system activation.