Incident Report

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Incident Report 2020-05-01T16:26:00+00:00

Another MCCR CO2 hit

Incident Date


Incident Description

Divers A and B were line laying on homemade rebreathers in a flooded mine. Diver A had a crane fall on him en route to the end of the line. As agreed A turned after 30 minutes into the dive at a depth of 20 m whilst B continued. On exit A had difficulty breathing due to the small scrubber being exhausted and made his exit by going semi-closed on the same unit. A surface with a CO2 headache and B took him to the pub to recover.

Lessons Learned

An overhead enviroment is not the place to test homemade rebreathers. Use fresh absorbent for every dive and size the scrubber accordingly to the length of the dive.
Line Management Negligible
Gas Management Negligible
Equipment Management Major
Equipment Failure Major
Training Negligible
Medical Negligible
Planning Major
Procedural Error Major
Cave Environment Negligible
Weather Negligible
Other Factor