In an unconfirmed matter only 1 or 2 of Indonesia's submarines may be active.
One is the 40 year old KRI Cakra recently overhauled. KRI Cakra is the sister ship of the tragically sunken KRI Nanggala in April 2021.
Indonesia now has 3 Batch I Nagapasa-class "Chang Bogo" Type 209 variants recieved from South Korea's DSME and Indonesia's PT PAL. These were commissioned into the Indonesia Navy in 2017, 2018 and 2021.
But here things get more complicated.
Anonymous sources claim:
- 2 Batch I Nagapasas are not active due to sonar problems
or
- all 3 Batch I Nagapasas are not active due to speed, depth and inability to launch torpedo problems.
Allegedly TKMS was unhappy with DSME modifying original Type 209/1200s into Type 209/1400 Nagapasas without DSME receiving TKMS re-export licences. So TKMS allegedly withheld the usual technical support that would have resolved the technical problems.
See the video here and below. It is dated July 9, 2022 and has English subtitles. It features former South Korean "Navy Captain and Submarine Expert Moon Geun-sick". He makes strong criticisms of Indonesia and France. He may be reducing Batch I Nagapasa licencing blame on South Korea, which also impacts the future Batch II Nagapasas, by also adding words seen below the videowhich are:
"Indonesia continues to delay the signed contract for three [Batch II Nagapasas ordered April 12, 2019] citing vague list of issues with the submarine. This is a unique Indonesian behavior which violates international commerce etiquette. CAPT Moon attributes primary cause of the controversy to Indonesian Navy's lack of preventative maintenance, poor safety culture, and lack of budget, which have resulted in low operational readiness across the force and even a tragic accident."
Again this is an unconfirmed matter.
Today, looking at the Indonesian Wikipedia entries for the "Status" of each submarine of the Batch I Nagapasa-class:
- KRI Nagapasa's Status was "Aktif" ie. active
but for
- KRI Ardadedali no Status listed
and
- Kri Alugoro no Status listed.