Nummer: 18621
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 13.12.1944 |
| Time of attack : | 09:40 |
| Nationality of U-boat : | German |
| U-boat : | U 722 |
| Commander : | Reimers |
| Grid : | BE 3952 |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | unknown |
| Actual tonnage : | ---- -- |
| Actual result : | hit not ascertained |
| Footnote : | U-722 heard a gnat end-of-run detonation. |
| Convoy : | unknown |