The submarine KRI Nanggala-402 was declared drowned along with 53 crew members in it. The submarine has contributed much to protecting Indonesian waters.
The KRI Nanggala-402 was a German manufacturer ship in 1979. The ship joined the TNI (national army of Indonesia) -AL in 1981.
The mission Nanggala-402 had participated in was an intelligence mission in East Timor to track the movement of Interfet troops (International Force for East Timor) in August-October 1999.
The submarine was also sent to the Philippine border to track weapons smuggling networks in the conflicts in Ambon and Poso in 1998-2000.
Rear Admiral Frans Wuwung said, KRI Nanggala 402 together with KRI Cakra 401 in East Timor waters at that time had made Australia cancel its intention to act against Indonesia.
“There were many forces at that time who wanted to enter other than Australia. But then they doubted because there was Nanggala there. That is called the deterrent effect,” said Frans, Saturday (24/4).
In 2004, KRI Nanggala succeeded in sinking the former KRI Rakata, a 1942-built ocean tug with a SUT torpedo in the XV / 04 Joint Marine Operations Exercise (Latopslagab).
In May 2005, KRI Nanggala 402 was assigned to the East Kalimantan area. This assignment was to monitor and be on the alert if something happens in the middle of the Masela Block dispute conflict.
It is known, at that time, the Malaysian ship Diraja Rencong carried out maneuvers that endangered the construction of the Karang Unarang lighthouse in the area.
In 2015, KRI Nanggala 402 joined the Nusa-15 Shield Task Force to carry out Marine Combat Alert Operations.
The operation includes the prevention and prosecution of violations of the territorial waters of the Eastern Indonesian national jurisdiction.
In the Marine Combat Alert Operation, KRI Nanggala was considered very supportive because it had a high deterrent effect.
Initially, the KRI Nanggala-402 was carrying out training in Bali Sea waters. However, KRI Nanggala-402 was declared missing contact. The TNI and related parties organized a search operation. The search mission yielded no results until the fifth day until Nanggala-402 was declared shipwrecked.
Chief of Staff of the Indonesian Navy Admiral TNI Yudo Margono said the submarine KRI Nanggala 402, which had lost contact since Wednesday (21/4) in Bali waters, had been detected at a depth of 838 meters below sea level.
Yudo said the KRI Nanggala 402 was found split into three parts. There is a part that is detached from the main body of the ship, then there is the back of the ship without a compressive body, then horizontal and vertical steering.
photo: archive photo of Nanggala 402; Fajar