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The Kencana Shark

Wednesday, April 21, 2021 at 02:30 WITA The roar of submarine engines began to move surfing in the 96 kilometers of the north sea of the island of Bali. The 53-man crew of the submarine was on full alert following training procedures.

That day his wife and the entire family of the submarine crew who were left behind by their husband on duty, returned to activity as usual. In between their activities as housewives and taking care of their children, they always pray for the safety of their husbands. May the departure of the husband in carrying out military operations, always protected by the god YME.

At 03:00 WITA the submarine permits diving at a depth of 13 meters from sea level in preparation for torpedo firing. At 03:46 the sirider checked the periscope and the identifying lamp (the dangling lamp) began to be invisible. At the same time as the torpedo's schedule was about to launch, calls continued but there was no response. But when the ship sank periscope is not visible and communication is not going, then at 04.17 WITA helicopter plane from I Gusti Ngurah Rai airport came to do visual around the location of 402 nanggala, the local police said, but the result is nil.

At 05.15 WITA should be a submarine nanggala 402 should have arisen to the surface after doing the exercise mission. Because the submarine does not arise to the surface, then at that time the subluk procedure is carried out. After three hours of searching, but the submarine was not found, then at 06.46 WITA submarine nanggala 402 declared sub mis (lost). While oxygen for the crew in the submarine is only able to survive for three days (72 hours).

Temporary allegations, natural factors (strong undersea currents) became the cause of the sinking of the submarine nanggala 402. According to Danseskoal Admiral Iwan Isnurwanto, who had experienced black outs on submarines, in less than 10 seconds, the ship could fall at a depth of 90 meters. So if there is an underwater current, with a slope of about 45 degrees, the possibility of the ship falling to a depth of 700-800 meters to the bottom of the sea, it only takes not up to a minute. It is inconceivable with reason, within a minute, it feels very impossible for the crew of KRI nanggala 402 to be able to save themselves from the accident.

Still related to the description of Danseskoal Admiral Isnurwanto Divers are on average only able to dive in the water 3-4 atm. At a water depth of 300 meters under the sea, the water pressure is very strong. If the submarine's door is opened, the water will quickly flood the submarine with a pressure of between 2-4 million cubic feet of water.

Even though in the water depth of ten meters (1 atm), we as ordinary civilians are already very hard-earned to swim in order to arise to the surface of the water. So it is inconceivable at a depth of 700-850 meters on the seabed (85 atm) it is impossible that the crew from KRI Nanggala will be able to survive.

The hydrostatic pressure of the water increases by 1 atm every 10 meters depth. At 700-850 meters below the sea, when the water enters the ship, the eardrum will break, the lungs will be compressed and then rupture, the entire body will be destroyed.

How panicked they were, in the early seconds of the accident until within a minute the submarine was carried away and fell to the bottom of the sea.

During the three days of the sinking of the submarine Nanggala 402 on April 21, 2021 at 03.46 WITA, the, search and rescue efforts continue to be carried out by the TNI and ship assistance from neighboring countries. All Indonesian people feel sad for the disaster that befell the crew of Nanggala 402. Moreover, the wives and families of the submarine crew, clearly felt immeasurable sadness.

On the last day of the maximum reserve limit of oxygen cylinders from crew nanggala 402 on Saturday, April 24, 2021, we as ordinary people, can only hope for the safety of the submarine crew. All Indonesian people in the country who witnessed the news about the search for KRI Nanggala 402 through television media, can only pray and hope for the emergence of a miracle for the safety of the crew of Nanggala 402.

As citizens, we certainly feel the deep sadness of the entire family of the crew of nanggala 402. They were naturally crying roars, and hoping that their husbands could return to their laps.

Saturday, April 24, 2021 at 17:00 WITA KRI Nanggala 402 was declared missing. In his press conference TNI conveyed information that after 72 hours of searching KRI nanggala was not found, the submarine was declared missing.

Navy Chief of Staff Admiral Yudo Margono conveyed the findings of the submarine on Friday afternoon 09.04 WITA from visual contact RV monitoring. The submarine has now been found in three parts at a depth of 838 meters on the seabed. Three fragments of the ship were detected about 1500 yards from the datum where the ship sank.

Meanwhile, according to marine observers (former head of the engine room KRI Nanggala 402, Rear Admiral Frans Wuwung, said: The separation of KRI Nanggala 402 into three parts is due to crossing the maximum operational depth limit of the submarine.

Submarines alone made of steel can be split into three parts, especially the human body composed of bones and flesh, it is really inconceivable the fate of the crew of KRI Nanggala 402. According to oceanographers, 838 meters below the sea, it's the same as 100 elephants.

After three days of searching, but the ship was not found then on Sunday, April 25, 2021, Commander Hadi Tjahjanto said that Nanggala 402 was declared missing, and all crew were declared dead.

How devastated the feelings of the wives and families of the 53 crew of Nanggala heard the news. They all cried bitterly, as if powerless to accept the reality. There is no happiness beyond the return of the husband after carrying out patrol duties to their lap, but reality says another, the entire crew of Nanggala 402 was not returned, they patrolled to eternity. All Indonesian people are now bowing their heads, while respecting and praying, may the spirits of the 53 crew members of KRI Nanggala 402 be received by the side of God and placed in his paradise. Amens.