Nummer: 23113
| Area : | Mediterranean |
| Sea area : | Eastern Mediterranean |
| Date of attack : | 16.04.1942 |
| Time of attack : | 03:34 |
| Nationality of U-boat : | German |
| U-boat : | U 331 |
| Commander : | Tiesenhausen |
| Grid : | CP 5665 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 4000 BRT |
| presumed result : | damaged ? |
| Used weapon(s) : | Torpedo(es) |
| Footnote : | U-331 observed one torpedo running on the surface hit but not explode. |
