Indonesia navy declares lost sub sank after finding debris

PTI, Apr 24, 2021, 5:39 PM IST

Banyuwangi: Indonesia’s navy on Saturday said items were found from a missing submarine, indicating the vessel with 53 crew members had sunk and cracked open, and that there was no hope of finding survivors.

Military chief Hadi Tjahjanto said the presence of an oil slick, as well as the discovery of debris near the location of KRI Nanggala 402’s last dive on Wednesday off the island of Bali, were clear proof the vessel had sunk.

Indonesia earlier considered the vessel to be only missing.

Navy Chief Yudo Margono told a press conference in Bali, “If it’s an explosion, it will be in pieces. The cracks happened gradually in some parts when it went down from 300 metres to 400 metres to 500 metres… If there was an explosion, it would be heard by the sonar.”

The navy previously said it believes the submarine sank to a depth of 600-700 metres (2,000-2,300 feet), much deeper than its collapse depth of 200 metres (655 feet), at which point water pressure would be greater than the hull could withstand.

The cause of the disappearance was still uncertain.

The navy had previously said an electrical failure could have left the submarine unable to execute emergency procedures to resurface.

Margono said in the past two days, searchers found parts of a torpedo straightener, a grease bottle believed to be used to oil the periscope, debris from prayer rugs and a broken piece from a coolant pipe that was refitted on the submarine in South Korea in 2012.

“With the authentic evidence we found believed to be from the submarine, we have now moved from the sub ‘miss’ phase to sub ‘sunk,’” Margono said at the press conference, in which the found items were displayed.

Margono said rescue teams from Indonesia and other countries will evaluate the findings.

He said no bodies have been found so far.

Officials previously said the submarine’s oxygen supply would have run out early Saturday.

An American reconnaissance plane, a P-8 Poseidon, landed early Saturday and had been set to join the search, along with 20 Indonesian ships, a sonar-equipped Australian warship and four Indonesian aircraft.

Singaporean rescue ships were also expected Saturday, while Malaysian rescue vessels were due to arrive Sunday, bolstering the underwater hunt, officials said earlier Saturday.

Family members had held out hopes for survivors but there was no sign of life from the vessel.

Indonesian President Joko Widodo had ordered all-out efforts to locate the submarine and asked Indonesians to pray for the crew’s safe return.

The German-built diesel-powered KRI Nanggala 402 has been in service in Indonesia since 1981 and was carrying 49 crew members and three gunners as well as its commander, the Indonesian Defence Ministry said.

Indonesia, the world’s largest archipelago country with more than 17,000 islands, has faced growing challenges to its maritime claims in recent years, including numerous incidents involving Chinese vessels near the Natuna Islands.