Nummer: 06702a
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 22.09.1941 |
| Time of attack : | 23:46 |
| Nationality of U-boat : | German |
| U-boat : | U 103 |
| Commander : | Winter |
| Grid : | DG 9922 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 7000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 4- |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | SL.87 |
| Date of observation : | 22.09.1941 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Niceto de Larrinaga |
| Year of launch : | 1916 |
| Actual tonnage : | 5591 BRT |
| Actual result : | sunk |
| Position of target : | 27.32n 24.26w |
| Footnote : | U-103 observed a ship capsizing after a weak detonation, then after two other detonations saw two ships going down by the stern. The fourth torpedo was a shallow hit with a big water column, and the fifth exploded with a blue-green flash. |
| related attacks : | Angriff 1 Angriff 2 Angriff 3 Angriff 4 |
| Convoy : | SL.87 |
| Route of convoy : | Sierra Leone (Freetown) - United Kingdom (Liverpool) |
| Remark to convoy : | Since Sep 1939; from May 1943 combined with MKS in Atlantic, counter traffic = OS. |