Nummer: 27504
| Area : | Indic Ocean |
| Date of attack : | 16.04.1944 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-8 |
| Commander : | Ariizumi |
| Grid : | Addu Atoll |
| presumed target type : | Sailing Freight Vessel |
| presumed result : | sunk |
| Used weapon(s) : | Gunfire |
| Name of target : | Lastensegler |
| Footnote : | I-8 reported one sailing vessel sunk by gunfire off Addu Atoll. - On May 5th, the submarine returned to Penang. |