RedactedNarrative: Vessel 1 sent out an emergency call in the vicinity of Conneaut Harbor. On board were three (3) male subjects who had sustained carbon monoxide poisoning. Two (2) of the three (3) subjects were unconscious at the time of discovery of Vessel 1 by the Army Corps of Engineers. All subjects were transported to University Hospitals Conneaut Medical Center by ambulance and released the next day. Vessel was secured to Conneaut Port Authority dock.
  
  Investigation found that the starboard engine was disabled in the Welland Canal in Ontario, Canada and was not in use during the incident. A crack in the port muffler allowed exhaust gasses to escape. The curtains on the vessel were up and zipped closed, with minimal air flow inside the vessel. Over time the concentration of carbon monoxide was at a dangerous level.