Responsible parties (employers, commands) retained guys like me, a confined space supervisor and made it my duty to determine the nature of the work space, the hazards, who and how any worker would enter that space. Confined space work can be expensive and tedious so part of my job was offering expert advice on how to eliminate the confined space. In this case cutting away the shrink and getting better ventilation to reduce CO and LEL would likely have done the job and prevented a death.
Which brings up another point depending on the boat fuel source carbon monoxide would not have been the only concern. We lose more boaters to bilges reaching explosive limits than CO.
Which brings up another point depending on the boat fuel source carbon monoxide would not have been the only concern. We lose more boaters to bilges reaching explosive limits than CO.