Indonesian navy searching for missing submarine with 53 on board

[sglowrider]

Indonesian navy searching for missing submarine with 53 on board; oil spill found near dive position

JAKARTA: Indonesia's navy is searching for a submarine that has gone missing with 53 people on board, the country's military chief Hadi Tjahjanto said on Wednesday (Apr 21). An oil spill was found near the dive position at 7am, Western Indonesian time (8am, Singapore time) and two navy

www.channelnewsasia.com

JAKARTA: Indonesia's navy is searching for a submarine that has gone missing with 53 people on board, the country's military chief said on Wednesday (Apr 21).

The submarine, KRI Nanggala 402, was taking part in a torpedo drill in north Bali waters but failed to relay results of the exercise as expected, said spokesman First Admiral Julius Widjojono.

The Indonesian navy is also seeking help from Australia and Singapore, military chief Hadi Tjahjanto told Reuters on Wednesday.

"We are still searching in the waters of Bali, 96km from Bali, (for) 53 people," Tjahjanto said.

He added that contact with the vessel was lost at 4.30am on Wednesday.

According to information on a TNI website, the submarine was built in Germany in 1981. The TNI is the Indonesian national armed forces. The vessel underwent a two-year refit in South Korea that was completed in 2012.

 

[Marvin the Martian]

Best wishes that this is just a minor incident, but that is a rare probability. No one that serves on a 40-year old sub has to prove their courage in any other way.

 

[sglowrider]

Best wishes that this is just a minor incident, but that is a rare probability. No one that serves on a 40-year old sub has to prove their courage in any other way.

The sub's depth limits around 240m and the seafloor around the Lombok Straits' around 1400m.
Plus they didn't report in after some live firing exercise!

 

[HooDatGuy]

It's probably under the water.

 

[IU? I'm Fine]

Eternal Father, strong to save,
Whose arm hath bound the restless wave,
Who bidd'st the mighty ocean deep
Its own appointed limits keep,
O hear us when we cry to thee
For those in peril on the sea!

- Navy Hymn

I served aboard the USS Skate (SSN 578) from 5/71 - 2-75. The worst danger is not from flooding. It is smoke. There is a lot of danger. But, if the sub is not communicating, then...it's over because of the depth. A mis-fired torpedo that doesn't leave the tube is not likely to be armed...but it could cause significant problems. But some 'torpedoes' are really other things. Like guided missiles or torpedoes that swim out then launch a payload. A torpedo can circle back. But there are countermeasures that would shut down the torpedo if that happened...hopefully. Flooding and smoke together are a possibility. Another very hazardous item is the huge battery array. It gives off explosive gases. So it needs to be monitored and/or ventilated. It is hazardous duty for sure.

 

[sglowrider]

Missing Indonesian submarine expected to run out of air at 3am Saturday: Navy chief

Contact with the Nanggala-402 vessel, with 53 crew members on board, was lost early on April 21. Read more at straitstimes.com.

www.straitstimes.com

 

[sglowrider]

Frantic hunt for Indonesian submarine as rescuers hone in on radar contact​

Indonesia’s desperate search for a missing submarine and its crew of 53 honed in on a radar contact Friday, with just hours to go before the stricken vessel’s oxygen reserves ran out.

The ramped-up hunt comes as Australia and the United States are set to join the search off the coast of Bali where the sub disappeared more than two days ago during training exercises.

Late Thursday, the military said it picked up signs of an unidentified object with high magnetism at a depth of between 50 and 100 metres (165 to 330 feet).

Ships equipped with sonar-tracking equipment were deployed in the hopes that the object could be the KRI Nanggala 402, which was equipped with oxygen reserves that could last until early Saturday, authorities said.

“We’ve only got until 3:00 am tomorrow (Saturday) so we’re maximising all of our efforts today,” said Indonesian military spokesman Achmad Riad.

“Hopefully there will be a bright spot.”

But an oil spill spotted where the submarine was thought to have submerged pointed to possible fuel-tank damage, fanning fears of a deadly disaster.

There are also concerns that the submarine could have sunk to depths believed to be as much as 700 metres (2,300 feet) — well below what it was built to withstand

 

[TheOriginalHappyGoat]

It seems like any missing sub mission is not rescue, but recovery. Prayers for the souls of the lost.

 

[IU? I'm Fine]

This is a tragedy. Even with loss of ability to get back to the surface, a submarine has a few ways to communicate. Underwater the submarine can go active on sonar...ie. The classic "ping". The submarine has small ejection tubes for sending flares or miniature floatable radio message buoys that pop to the surface. There are low frequency speaker systems for talking between ships or underwater teams...these use the excellent acoustics of water in lieu of radio broadcasts through the atmosphere. Finally, there are floatable buoys with a tether line that when released still is attached to the submarine but...depending on the length of the tether...marks the position.
Obviously, reports of an oil slick may be a really bad thing. Seems that whatever happened may have happened very quickly. Too quickly for a message. Usually there is a partner vessel close by. Seems there is no news about that. May be that all the information about a military operation or test will remain out of the media.
When two US nuclear submarines went down, the general public went a long while without any clear description of what happened. USS Thresher and USS Scorpion...one apparently imploded and one exploded. Leaks during a sea test operating near crush depth for one...probably. Resulted in the Navy Subsafe program of replacing numerous valves and checking welds. The other was likely the battery off-gases...exploding. Not sure...after all these years. For other submarine exploits...check out the Glomar Explorer recovery of a Russian submarine somewhere near Hawaii.

 

[sglowrider]

Indonesia military says missing submarine sank​

The navy’s chief said a search party had recovered fragments from the KRI Nanggala 402 including items from inside the vessel, whose oxygen reserves were already believed to have run out.

Warships, planes and hundreds of military personnel have been searching for the stricken vessel. Authorities had said the German-built craft was equipped with enough oxygen for only three days after losing power.

That deadline passed early Saturday.

“We have raised the status from submiss to subsunk,” navy chief Yudo Margono told reporters, adding that the retrieved items could not have come from another vessel.

“(The items) would not have come outside the submarine if there was no external pressure or without damage to its torpedo launcher.”

Navy officials displayed several items including a piece of a torpedo and a bottle of grease used to lubricate a submarine’s periscope.

They also found a prayer mat used by Muslims.

Timeline:

 

[sglowrider]

Sunken missing Indonesian submarine found cracked open, officials say 53 crew members dead​

All 53 on board sunken Indonesian submarine confirmed dead, more debris found: Military chief​

RIP! What a way to die.