Incident Report

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

2nd Stage Diaphragm Failure

Incident Date


Incident Description

1970 - A diver using a Swedish Poseidon valve experienced total collapse of the second stage diaphragm which tore. It was possible that this was due to excessive use in chlorinated swimming pools followed by lack of maintenance.

Lessons Learned

Maintain equipment correctly.
Line Management Negligible
Gas Management Negligible
Equipment Management Major
Equipment Failure Major
Training Minor
Medical Negligible
Planning Negligible
Procedural Error Minor
Cave Environment Negligible
Weather Negligible
Other Factor Unknown