Nummer: 25108
| Area : | Mediterranean |
| Sea area : | Tyrrhenian Sea |
| Date of attack : | 09.10.1943 |
| Time of attack : | 00:36 |
| Nationality of U-boat : | German |
| U-boat : | U 616 |
| Commander : | Koitschka |
| Grid : | CJ 9126 |
| presumed target type : | Destroyer |
| presumed result : | sunk |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | unknown |
| Date of observation : | 09.10.1943 |
| Time of observation : | 01:00 |
| Nationality of target : | American |
| Actual type of target : | Destroyer |
| Name of target : | Buck (DD.420) |
| Year of launch : | 1939 |
| Actual tonnage : | 1570 ts |
| Actual result : | sunk |
| Position of target : | 39.57n 14.28e |
| Convoy : | unknown |