Carbon monoxide poisoning on board the sports cruiser Emma Louise with loss of 2 lives

Location: Port Hamble Marina, River Hamble, England.

Accident Investigation Report 1/2023

Read our marine accident investigation report, which includes what happened and actions taken:

MAIB investigation report 1-2023: Emma Louise

Sports cruiser Emma Louise moored starboard side to a finger pontoon

Summary

On the morning of 12 January 2022, two men were found unconscious in the covered cockpit of the privately owned sports cruiser Emma Louise, which was moored in Port Hamble Marina. The men had left the boat’s petrol engine running during the previous evening, likely to maintain power to some of the boat’s systems. Exhaust gas had built up in the covered cockpit area, causing them to pass out and die due to carbon monoxide (CO) poisoning.

Safety Issues

  • Exhaust gas, containing CO, had likely been funnelled into the cockpit between the boat’s transom and an inflatable water skiing ringo suspended from it. The cockpit was covered by a close-fitting canopy and the exhaust gas accumulated as there was little ventilation to enable the CO to disperse.

  • With no CO alarm fitted on board the men were not alerted to the danger of CO poisoning before they succumbed.

  • Further work by industry stakeholders to raise CO awareness among pleasure craft users is required to reduce the increasing number of fatalities caused by CO poisoning.

Statement from the Chief Inspector of Marine Accidents

Recommendations

In view of MAIB recommendations issued in 2017 following the Love for Lydia investigation, supported by our participation in the UK government’s Carbon Monoxide Awareness Week in November 2022 and the safety flyer issued with this report, no further safety recommendations have been made.

A safety flyer has been issued as part of this investigation highlighting the hazards posed by carbon monoxide to the recreational craft industry and pleasure craft users.

The accident investigation report involving CO poisoning on board the motor cruiser Love for Lydia in 2016, resulting in two fatalities.

Safety critical advice for boat users from Chief Inspector of Marine Accidents to mark the start of CO awareness week 2022, reminding them of the hazards posed by this poisonous gas, and an information video highlighting simple ways to keep you safe:

MAIB’s CO awareness video for boat users

Published 27 April 2023