Nummer: 16004
| Area : | Western Area |
| Sea area : | Brasilian Coast |
| Date of attack : | 20.03.1943 |
| Time of attack : | 04:27 |
| Nationality of U-boat : | German |
| U-boat : | U 518 |
| Commander : | Wißmann |
| Grid : | FJ 8883 |
| presumed target type : | Steam Freighter id |
| presumed tonnage : | 7659 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 20.03.1943 |
| Time of observation : | 00:45 |
| Nationality of target : | Dutch |
| Actual type of target : | Steam Freighter |
| Name of target : | Mariso |
| Year of launch : | 1930 |
| Actual tonnage : | 7659 BRT |
| Actual result : | sunk |
| Position of target : | 13.20s 37.25w |