Here is a rough translation from someone who was on the boat but in a different group. I didn't fix everything said from the translation but you should get some of the drift. Get it? "Drift". Nevermind. Certain parts I can not make out what was meant so I left it ass is. It does not explain why the divers wet missing but it does give some direct facts that help in the speculation.
2012
I was in the boat, and I have some learning experiences and specific details to share with you:
This was a typical Singapore diving trip over the weekend, starting Friday night after work, a 3 hour journey from Singapore to the Terminal, and then we took the night boat to Tioman. Over Saturday and Sunday we were to do 6 dives then backtrack to Singapore.
On Saturday morning, our boat group looked like this:
A: an instructor, 2 AOW students. 4 Fun diver, I was in the group.
B: an instructor, 1 DM, 2 Deep Dive students, and 3 Deep Dive students retaking the course. The 3 trainees attended this course, because we had a “wreck” in October trip, so these students are going to go over the entire process again.
C: a DM,3 Fun Diver
After the first Check Out dive, the ship came to Chebeh Island, the students of the second group of people start their course. Their plan is 7 9 bottles of gas, aimed at Skill time with adequate water and enough gas to Deco Stop.
This underwater temperature was a minimum of only 24 degrees, which is very unusual in Tioman. Usually the water temperature remains above 28 degrees. 3mm Wetsuit for me, wearing a hood I still feel occasionally cold. Probably only about 5 meters and visibility. But the bottom has no current, on a scale of 0 -10, the current was between 0 and 1.
On this June 23 dive, I am in the water at the deepest of 30.4 m, average depth of 14.3 meters, the bottom time 48 minutes. After we boarded we saw the DM who had been separated from Group B, was the first and only person aboard from his team. Below I give details from the DM for everyone to discuss.
6/24
12:23 PM---the water, move forward in the East
12:25 PM---to 22m under the seabed, continues to move forward in the East
12:33 PM---31 m, instructor for students to do 1 set of skills exercises
12:36 PM---underwater without currents, proximity Deco time, increasing depth, follow the bubbles
Here is to be raised, the instructor and the DM to prevent emergency situations requiring liters of water, let DM a person in a non-decompression diving State, while the other 6 people are in the water before going to do good to a very short period of decompression dive, which is why take 9 bottles of water in the gas.
12:47 PM---I get separated, in 29 m looking for 1-2 minutes later, then begin to surface.
13:07 PM---complete the security, I stay on board.
13:34 PM---on the dive boat followed by a and c Group begin to around the island looking for Group b, the captain informed the others in a nearby dive boat.
14:19 PM---a instructor and another DM water search team was formed, underwater still not ocean currents.
15:00 PM---GUE boat came to the diving sites, due to our search and rescue region in 40 meters, request that they assisted by Twin tank divers.
15:00 PM---instructor and 2 DM once again launched a search and rescue, my buddy and I also participate on a voluntary basis in search. 3 of them were separated from exploration, me and my buddy was assigned a region looking for 2 people. Not found. At about 30 meters, found that ocean currents towards the North. About degree for 0-10 minutes.
15:55 PM---another dive boat also came to the scene to help.
Emergency contact person 16:20 PM---began to contact missing divers, began practicing DAN seeking assistance.
18:14 PM---me and my Buddy in the dark again before the water was found.
First day stop there after dark, we go back to rest on the island. This is our high pressure, were silent.
Because here at the same time there are several boats, we guess is that 6 people pick up by another ship, and 6 people at the bottom does not come up and there is a low probability. All alarm time for about 2 per cent, Malaysia maritime police for about 3 more points have two more boats arrived. 8 naval divers reached the night preparing the next day on the island continue to search for the submarine.
Back on the island after we informed the Chinese Embassy, the Embassy and Malaysia Governments had also made contact, hoping that they insists on continuing search and rescue on the sea at night.
6/24
09:50 AM---I and my buddy by chebeh launching again, since there is no found.
More than 11 points, we are back to the pier intended to pack back to Singapore Shi, received a call from police and officers left behind on the island, found 6 divers said that a ship is at sea, the body is in good condition. As was found by the tugs, ship's speed slow, marine police speedboat to take them back to the island's Hospital for examination. 6 persons are normal, did not remain in hospital under observation.
Lessons learned:
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1. personal safety equipment complete:
SMB is we often say that the sausage was the first to be prepared, my buddy and I spent 2 respectively, are all common 2 meters by alternate secondary air in water, the advantage is released under water, it is common. Another was around 1 meter, can only be inflatable by mouth, is blowing through your mouth under water without the benefits due to the sudden changes of buoyancy is sitting rockets by rope pull on the water, and then submit a small, easily the sea gas blowing full wave. Harm is special exercises are required to only use, and low height, target is smaller. He had prepared to kind of look at your personal choice.
2 alternate flashlight, we prepare alternate flashlight is the kind of sustained lit up for a long time, lost at night, or when this night drifting in the sea, you can maintain a continuous lighting, attract attention. I am ready to Scubpro Nova light 230, my buddy ready are UK SL3, both flashlight lumens of light are not high, but it can be sustained for more than 18 hours, enough one evening. Day or night diving the two mobile we have been with me, night diving is the main lighting we also used Dealextrem 1000 lumens. My buddy has recently had a 3,000 lumens, underwater lights blind the human eye.
3 is the survival whistle. I found a lot of BCD survival whistle up to 200 meters can be worn, well you could not call for help requests. We have prepared Divers Alert, is the siren LP Guan Lai when gas source.
4 is water, I discovered from this experience if you have a bag of water in the body, even drifting 24 hours there will be no big problem, you can give others sufficient search and rescue time. I intend to bring a bag of water next time in BCD in the rucksack, is the Halycon originally designed SMB place.
I would also like to go to next week GUE fundi course on Tioman, after this experience, I feel the need to better prepare themselves to face situations that may occur.
Just sleep, the mind is also a bit of a mess, look at what opinion or our response to anything that improvements can be made and then discuss it.