Nummer: 23112
| Area : | Mediterranean |
| Sea area : | Eastern Mediterranean |
| Date of attack : | 15.04.1942 |
| Time of attack : | 18:33 |
| Nationality of U-boat : | German |
| U-boat : | U 331 |
| Commander : | Tiesenhausen |
| Grid : | CP 6178 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 3000 BRT |
| presumed result : | damaged |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 15.04.1942 |
| Nationality of target : | Norwegian |
| Actual type of target : | Steam Freighter |
| Name of target : | Lyder Sagen |
| Year of launch : | 1918 |
| Actual tonnage : | 3844 BRT |
| Actual result : | target visibly missed |
| Position of target : | Beirut Harbor |
| Footnote : | U-331 laid a minefield off Beirut, three mines of which were swept on April 28th, 1942. - A ship inside the harbor was attacked while barges were alongside. A large fire- and smoke-column was seen. The Norwegian freighter "Lyder Sagen" (3.944 grt) was not damaged. |
| updated on: | 00.00.0000 |
| Remark: | Anm.: Lyder SagEn |