RedactedNarrative: On 5/24/2019, at approximately 1400 hours, a single vessel grounding occurred in the Intra-coastal waterway near Vero Beach Florida.  A 55 foot Azimut motor yacht (V-1) grounded on the edge of the channel at an unknown location.  No damage was noted by the owner or operator at the time of the grounding.  V-1 was towed off the sand and continued north on the ICW.  On 5/26/2019, V-1 was north bound in the Atlantic Ocean off the coast of Volusia County Florida when it began taking on water.  USCG responded from Ponce Inlet Station and escorted V-1 into port in Daytona Beach Florida where it was hauled out for inspection.  It was found that the strut on the port side had been pushed into the propeller shaft.  The improper alignment caused the engine mounts to fail and water entered the vessel through the stuffing boxes. 
  
  The Captain stated that while underway at approximately 10 knots, he saw the depth sounder indicated shallow water and reduced the throttle to idle speed.  V-1 grounded as the speed was reducing.  After being towed off the sand,  V-1 felt as though it was operating normally and that no damage had occurred.  Approximately two days later, while off-shore traveling north, the port engine came off of its mounts and water began coming on board.  He called the Coast Guard and set a course for Ponce Inlet.  USCG arrived a short time later and escorted them to port.  V-1 continued to the marina under its own power and was hauled out for inspection.  V-1 had been purchased approximately three weeks prior to this incident.  The application for documentation is underway.
  
  Due to the time between the grounding and swamping, and the location of the grounding being unknown, I am unable to determine any further causation  regarding this accident.
  