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http://www.ccrexplorers.com/showthread.php?t=15849
It is with great sorrow I write this report, on behalf of the team, of the death of fellow cave diver and good friend George Terezakis.
George was a newer member of the team with amazing enthusiasm and motivation. As he was quite young – just 25 – we all believed he would evolve in a great cave explorer. He loved diving - caves and sea - and was extremely happy diving his rebreather that opened up new horizons for him. George was an amazing open hearted person always smiling, giving and sharing. He will be greatly missed by his friends and his large family leaving a large gap behind. We are all slightly comforted from the fact he died while doing what he so much loved but are still socked.
Accident report follows:
Location: Sintzi Cave, Arcadia , Greece
Date: May 26, 2013
Name: George Terezakis, age: 25
Rebreather: Megalodon eCCR
The accident happened around 400 meters in the cave, at a large chamber where the habitat is located, at a depth of -15m. The cave is deep (has been explored to 153m few years ago) and these dives were all part of the preparation for further exploration were George was acting as a support diver.
There were 4 divers totally on this dive all with Megalodon eCCR rebreathers. The Megs were dived “normally” on setpoint and not manually.
At the time of the accident George was at a depth of 14-15 meters decompressing from a dive in the 60m range. George suddenly became unconscious. He was spotted within seconds and the closest team member got to him immediately. He was completely unresponsive and not breathing. As this happened just below the habitat we moved him into the habitat and tried to revive him with no success.
We recovered George later in the night.
Based on the info we have so far we believe that he did not pass out from hypoxia or hyporoxia. His setpoint and pO2 was within range at the time of the accident.
Gases were common for the rest of the team so this has been eliminated as a cause.
This leaves the possibility of medical problems and hypercapnia. Although the medical investigation is still not finalized we have reasons to believe that hypercapnia was the cause of the accident as there are some indications that there could have been a possible CO2 bypass.
As there is an ongoing formal / legal investigation we are limited on the details we can release at this point. However we (the team and the family) are committed to share with the community the root cause of this accident – even more if this could have impact on the safety of other divers.
Therefore we would kindly ask – also out of respect for the family – to restrain from any speculation at this point.
For the record, we are also in contact with ISC through the UK affiliate. ISC has been open to support and help in the investigation.
May George rest in peace, we will always remember him and the great memories we had together.
George Tzavelas on behalf of the team