Nummer: 25805
| Area : | Indic Ocean |
| Sea area : | Southeast Asia |
| Date of attack : | 03.01.1942 |
| Time of attack : | 01:45 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-158 |
| Commander : | Kitamura |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) + Gunfire |
| Date of observation : | 01.01.1942 |
| Nationality of target : | Dutch |
| Actual type of target : | Steam Freighter |
| Name of target : | Langkoeas |
| Year of launch : | 1930 |
| Actual tonnage : | 7395 BRT |
| Actual result : | sunk |
| Position of target : | N Bawean I. |
| updated on: | 00.00.0000 |
| Remark: | Langko-ea-s |