Nummer: 26309
| Area : | Indic Ocean |
| Nationality of U-boat : | Japanese |
| U-boat : | I-27 ? |
| Commander : | Kitamura |
| Number of torpedoes/mines : | 2 |
| Used weapon(s) : | Torpedo(es) |
| Date of sinking : | 12.09.1942 |
| Time of sinking : | 17:00 |
| Nationality of target : | British |
| Actual type of target : | Motor Tanker |
| Name of target : | Sepia |
| Year of launch : | 1936 |
| Actual tonnage : | 6214 BRT |
| Actual result : | target visibly missed |
| Position of target : | 19.21n 60.30e |
| updated on: | 00.03.2013 |
| Remark: | Fehlschuss |