Incident Report

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

Depth-dependent symptoms

Incident Date

1906-08-06

Incident Description

A trip was made in the Roussel with no particular objective other than tourism. The diver had previously been to -45m and -50m in this cave in previous years. Previous dives that week had been undertaken without incident this was the last dive of the holiday. When the diver reached -19m he started to feel slightly nauseous which rapidly developed to feelings of deep sadness (even depression) at -21m. The diver returned to -19m and again only felt slightly nauseous. He descended back to -21m and once again had strong depressive feelings. The diver returned again to -19m thought about it for a while and aborted the dive. No symptoms were noted on the surface either before or after the dive - apart from annoyance.

Lessons Learned

It is assumed narcosis was to blame. I had previously read about symptoms like these but never experienced them and indeed had dismissed the idea so it was quite a shock when it occurred. If the dive had been for a more purposeful reason the urge to progress might have caused greater conflict in choosing to abort. Sometimes it just isn\'t your day...
Factors
Line Management Unknown
Gas Management Unknown
Equipment Management Unknown
Equipment Failure Unknown
Training Unknown
Medical Major
Planning Unknown
Procedural Error Unknown
Cave Environment Unknown
Weather Unknown
Other Factor Unknown