The second-in-class Zumwalt destroyer was forced to stop builder trials early and to return to the General Dynamics Bath Iron Works shipyard in Maine, Naval Sea Systems Command said, according to USNI News.
The equipment failure occured a day after USS Michael Monsoor (DDG-1001) left Bath Iron Works on December 4. The ship returned to the shipyard on December 5 to solve its problem with harmonic filter.
“Harmonic filters are used in complex electrical systems to prevent unintended power fluctuations from damaging sensitive equipment.
The loss of the filter prevented the ship from running its complicated electric drive system at full power as part of the testing that was intended to be carried out during the trials,” a report by USNI News reads.
The first of the class destroyer USS Zumwalt also experienced several high-profile mechanical failures after it was delivered to the US Navy. One of the incidents took place while it was transiting the Panama Canal.