From the US Naval Institute News:
USS Zumwalt Sidelined in Panama Following New Engineering Casualty
USS Zumwalt (DDG-1000) is pier side following an engineering casualty the ship suffered transiting the Panama Canal, U.S. Navy officials told USNI News on Monday.
The guided missile destroyer will undergo repairs at a former U.S. naval station until its fit to complete its journey to Naval Station San Diego, Calif., U.S. 3rd Fleet spokesman Cmdr. Ryan Perry told USNI News.
The ship was in the midst of a southbound transit through the canal when it suffered the casualty, Under orders from U.S. 3rd Fleet commander Vice Adm. Nora Tyson, Zumwalt is now stopped for repairs at the former U.S. Naval Station Rodman, he said.
The problem:
The ship lost propulsion in its port shaft during the transit and the crew saw water intrusion in two of the four bearings that connect to Zumwalt’s port and starboard Advanced Induction Motors (AIMs) to the drive shafts, a defense official told USNI News on Tuesday. The AIMs are the massive electrical motors that are driven by the ship’s gas turbines and in turn electrically power the ship’s systems and drive the shafts.
Large amounts of electricity next to salt water is a recipie for problems. The previous problem came last September: Next-Generation Destroyer Zumwalt Sidelined for Repairs After Engineering Casualty
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