Nummer: 09523
| Area : | Western Area |
| Sea area : | Central Atlantic |
| Date of attack : | 15.05.1942 |
| Time of attack : | 02:54 |
| Nationality of U-boat : | German |
| U-boat : | U 156 |
| Commander : | Hartenstein |
| Grid : | EE 6355 |
| presumed target type : | Motor Freighter id |
| presumed tonnage : | 4301 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 15.05.1942 |
| Nationality of target : | Norwegian |
| Actual type of target : | Motor Freighter |
| Name of target : | Siljestad |
| Year of launch : | 1927 |
| Actual tonnage : | 4301 BRT |
| Actual result : | sunk |
| Position of target : | 15.20n 52.40w |
