The 3 survivors have given a detailed report of the incident to the diving authorities (In Finnish). Main points in brief:
- 2 teams. First team had two divers (numbered 1 and 2), Second team had three divers (3,4,5).
- Second team went in 2 hours after the first team
- The divers had gone through the bailout plan
- They used rebreathers
- They carried along extra rebreathers as well as extra open circuit gas
- The plan was to dive through the cave and meet at the other side
- Deepest point 129 meters
Early dive for team one goes ok, until diver number 2 from the first team gets stuck in a tight spot after the deepest point (at 110 meters this point). Diver 1 (who already went through said spot) tries to help, but he cannot get out. Simultaneously his rebreather starts malfunctioning. Despite trying to help in any way he can, diver 1 has to witness diver 2 perish.
Diver 1 goes up and out the other side. Intended dive length of 5 hours turns to 8, and he has to skip 45 mins of the 6 meter deco, but gets no dcs symptoms.
(during deco at 12 meters he meets diver 3 from second team)
Second team early dive goes well also until they come to the tight spot where they find diver 2 from the first team dead, still stuck and blocking further passage.
After a failed attempt to move the body out of the spot, diver 3 from second team removes gear, pushes them through the spot and manages to move through it. Simultaneously, without diver 3's knowledge, diver 4 has run into problems with his rebreather on the other side of the tight spot. Diver 4 has switched to open gas, but despite help from diver 5, he dies. Diver 3, on the other side of the tight spot, assumes that divers 4 and 5 turned back, and moves on, and eventually meets diver 1 at deco. Diver 3 has to skip 80 minutes of deco at 6 meters (also an 8 hour dive), and gets mild dcs symptoms (joint pain).
Diver 5 turns around after diver 4 dies, has more problems with his equipment and dive time becomes over 11 hours. He has to skip 90 minutes of the 6 meter deco, but has no sympotms.
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So from the report it seems that the deaths were not strictly related. Both had rebreather malfunctions.
---------- Post added February 10th, 2014 at 06:24 PM ----------
Link to the report (In Finnish):
Sukeltajaliitto ry - Näytä uutinen
Google translated to english:
Google-kääntäjä