Two dead in flooded quarry - Russia

[DandyDon]

The translation is challenging. Hopefully someone can find and add more information...

In Russia, two divers disappeared in the technological pond (VIDEO) | The Siver Post

Two divers rose to the surface after a dive in a flooded quarry to a depth of 70 meters, is located four kilometers from the village of Krasnaya Kemerovo region.

It is reported Lenta.ru with reference to the Youtube-channel of the Investigative Committee of the Russian Federation.

According to the UK, October 6, three divers from Novosibirsk arrived at the technological pond and made a dive after a while rose to the surface only one. The man explained that they had planned to descend to a depth of 20 meters. However, he felt the lack of oxygen and made an emergency ascent. At that moment on his career was another group of divers. They tried independently to find two missing people, and then turned for help to law enforcement.

Divers MOE licensed to dive to a depth of 20 meters, divers have not found. Then the search has attracted divers who are authorized to dive to a depth of 60 meters.

On October 7 at the middle of the pond at a depth of 34 meters body divers was discovered, immediately raise was only the body of one of them is 65-year-old man. The second body fell to the depth of 40 meters. Events in his rise continue.

The equipment of the deceased diver was examined, according to preliminary information, it is in good condition. On a special sensor that was fixed on the hand of the victim, recorded a dive to a depth of 49.7 m.

In connection with the death of two divers conducted preliminary examination.

Are the circumstances of the incident and the cause of death of the victims. By results of check the procedural decision will be made.

We will remind that earlier on 7 October, Russian media reported that in the Kemerovo region, Leninsk-Kuznetsky, rescuers found the bodies of two Novosibirsk divers who went missing during a dive in a flooded quarry.

 

[Scuba-74]

I can see how this translation can be confusing. The very first line "Two divers rose to the surface..." is the opposite of what the original source reported, which is the two divers actually didn't surface.

The rest of the article captures the gist of what happened. Three divers planned a 20m dive, then one of them performed an emergency ascend. Another group of divers who happened to be there descended to look for the other two but couldn't find them. The two bodies were found by the emergency response divers the next day at the depths of 34m and 40m. At the time of the writing only one body (from 34m) was recovered, the gear of that one deceased diver was inspected and "was in working order". The source doesn't mention what gas was used (although for 20m dive I would suspect air), what the qualification of the divers was, what the purpose of the dive was, were the weights ditched, or anything else that could give any clue as to what the cause of the accident was.

 

[flyboy08]

Maybe our fellow member
АлександрД an shed some light on this?

 

[АлександрД]

No, I knew itself just from here Дайвинг в Санкт–Петербурге :: Просмотр темы - Новосибирск
first link is translation of this article Дайверы утонули в мутном карьере: Следствие и суд: Силовые структуры: Lenta.ru

Ok, I found more info: here is more details «Занимались дайвингом 15 лет»: знакомые рассказали о гибели двух новосибирцев в заброшенном карьере Друзья - о погибших в Кузбассе новосибирских дайверах: «Их сгубил «азотный наркоз»

65-летний Владимир Забелин, 49-летний Игорь Моргунов
Vladimir Zabelin, 65, and Igor Morgunov 49
They had 15 years of diving experience
Had dives in Norway, Egypt, Indonesia, etc.
Zabelin had over 700 dives

Goes in three. Two named together, and third (49-летний Константин Гуляев) Konstantin Gulyaev 49, behind them.
Plan was up to 20m.
Konstantin at the one moment feels OOG, and starts to ascend.
Waiting others some time and call others divers from open pit for help.
Body of Vladimir was found, and buoy was attached to him, but rescue diver had out of air, and ascended too.
Next day was called proffecional rescue team.
Body of Vladimir was taken to the surface from 34m. Depthmeter (computer) of him shows maximal reached depth of 49.7m
Other body (Igor) was not found in the beginnig. Later Igor`s body was found at the depth of 40m, and taken to the surface.
Water temperature from +2 to +4 degree Celsius.
At the depth over 20m is total darkness.

Possible reason of death - nitrogen narcosis.

P.S. I always told - never dive "In three" - too many death was in team of three divers. Just two or four. (but I suspect, not in this case - here was like two and one solo...)

 

[Bubblesong]

Could the altitude of the quarry that they were diving have been a factor? There are ski resorts in Kemerovo, so the quarry could have been at a high altitude. But with these men's experience, I would think they would have used the altitude dive table adjustments.

 

[KevinNM]

P.S. I always told - never dive "In three" - too many death was in team of three divers. Just two or four. (but I suspect, not in this case - here was like two and one solo...)

If you don't train in a group of 3 you shouldn't dive that way. 3 is a preferred GUE technique because it allows for a diver who is not involved in an emergency to help and keep the divers involved in the emergency out of further trouble.

 

[dmaziuk]

Could the altitude of the quarry that they were diving have been a factor? There are ski resorts in Kemerovo, so the quarry could have been at a high altitude. But with these men's experience, I would think they would have used the altitude dive table adjustments.

Google says the nearby vilage is 200 m above sea level, though that doesn't mean the quarry is... The reporting is bad as usual, including claims of 30 m max. depth in one place vs. 70 m in another, and 49.7 m apparently recorded by one of the computers.

 

[АлександрД]

some new information updates:
Journalists - is a main enemy of truth.....

Body of Vladimir was taken to the surface from 34m. Depthmeter (computer) of him shows maximal reached depth of 49.7m
Other body (Igor) was not found in the beginnig. Later Igor`s body was found at the depth of 40m, and taken to the surface.

Пропавших в Кузбассе дайверов нашли мертвыми в карьере - Форум Тетис and late:
Maximal quarry depth is less than 40m (up to 38m)

and updates: «У них остался воздух»: выживший дайвер рассказал подробности инцидента с двумя новосибирцами
Vladimir had 100bar of air in tank, when his body was recovered
Igor had 15L tank

And dive buddies:
Konstantin (who`s alive) goes with Vladimir.
Igor - goes little deeper.
At the 24m K. shows to Vladimir "Go up!". Vladimir turned on the lamp and starts to give light signs to Igor. But Igor do not react to this signs.
Later I. and V. hit the mud from bottom and visibility became very bad and Konstantin lost them, and his lamp was weak.
It was at the depth little over 30m. He try to find them, and his lamp totally lost off power. He goes to the small panic and started to ascend.

Vladimir had over 900 dives

Пропавших в Кузбассе дайверов нашли мертвыми в карьере - Страница 2 - Форум Тетис
maximal depth at computer - 37m
air remaind in thank - 5 bar
Second stage not in the mouth
Body layed face down

Another possible reason of accident - Carbon Monoxyde