Nummer: 08817
| Area : | Western Area |
| Sea area : | West African Coast |
| Date of attack : | 04.04.1942 |
| Time of attack : | 21:29 |
| Nationality of U-boat : | German |
| U-boat : | U 505 |
| Commander : | Loewe |
| Grid : | FF 2242 |
| presumed target type : | Steam Freighter id |
| presumed tonnage : | 5759 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 04.04.1942 |
| Time of observation : | 19:10 |
| Nationality of target : | Dutch |
| Actual type of target : | Steam Freighter |
| Name of target : | Alphacca |
| Year of launch : | 1928 |
| Actual tonnage : | 5759 BRT |
| Actual result : | sunk |
| Position of target : | 01.50n 07.40w |