KMP Tampomas II[a] was a roll on-roll off car and passenger ferry owned by the Indonesian shipping company Pelni that burned and sank in the Java Sea while sailing from Jakarta to Ujung Pandang, South Sulawesi on 27 January 1981.

PANN (Pengembangan Armada Niaga Nasional or National Commercial Fleet Development) from Comodo Marine Co. SA, Japan for US$8.3 million, and then Pelni repurchased it from PT.

A Member of Parliament from the PDI party, Ahmad Soebagyo, mentioned various irregularities during the cruise, including the ship was circling in the same radius due to the malfunctioning of its engine automatic regulator buttons and the cancellation of a show event on the ship due to a prolonged electrical failure.

The ship was carrying dozens of motor vehicles, including a SAKAI steam roller, Vespa scooters, etc., which were parked on the car deck.

The fire grew larger in the engine compartment because of the open deck doors, and caused a power cutoff for two hours.

Subsequently, fuel in the tanks of passengers' vehicles ignited, causing the fire to spread and resulting in all of the decks rapidly burning up.

KM Ilmamui joined the rescue effort at 21:00, followed four hours later by the tanker Istana VI and other ships, including Adhiguna Karunia and PT.

As a result, in the morning of 27 January, there was an explosion in the engine room which created an entrance for the sea water to fill the compartments.

Finally, at 12:45 on 27 January (about 30 hours after the first spark), the ship sank to the bottom of the Java Sea, along with 288 people still occupying the lower decks.

Early reports were that 757 people had been rescued and 439 died (143 recovered bodies and 294 missing), totalling 1196, in excess of the 1137 officially on board.

[5] The investigation, led by Attorney Bob Rush Efendi Nasution, did not provide meaningful results, because all errors were blamed on the crew.

[citation needed] In a TV broadcast on 29 January, the Governor of South Sulawesi Andi Oddang declared three days of mourning and instructed the populace to lower flags to half-mast.