RedactedNarrative: Operator stated:  we were driving around and started to take on water.  The boat started to sit low.  I lifted the seat and the ski was 3/4 full of water.  Then the stern went under and we fell off.  We swam to the marsh.  I believe that the problem was caused by a manufacturer's defect, because the ski is brand new.  
  
  Passenger stated:  When we jumped off the sinking jet ski, we were swimming towards the shore.  I couldn't swim very well, so I removed my lifejacket and wet suit, so I could swim better.  When I got to shore, I was very cold and shivering uncontrollably.
  
  Investigation at the scene revealed:  Upon arrival at the incident location, the PWC was sitting bow up, stern down in the water, capsized.  We located the occupants just west of the PWC's location in the presence of good samaritan on a 21' center console vessel NJ6832FZ.  We proceeded to wrap the victim complaining of exposure symptoms in an emergency blanket, and float coat.  The victim was relayed to Peir One Marina in Toms River for treatment by the Toms River First Aid Squad.  The PWC was taken into Sea Tow's possession, at the direction of the PWC owner.  After taking the occupants for first aid treatment, we proceeded to inspect the vessel (Boarding Report 05-13B).  The source of the mechanic malfunction could not be determined through operator and passenger statements, and conditions of the recovered capsized PWC.
NameOfBodyOfWater: Barnegat Bay
NearestCityTown: Toms River                    