Nummer: 06220b
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 23.08.1941 |
| Time of attack : | 03:35 |
| Nationality of U-boat : | German |
| U-boat : | U 564 |
| Commander : | Suhren |
| Grid : | CG 2772 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 5000 BRT |
| presumed result : | damaged ? |
| Number of torpedoes/mines : | - |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | OG.71 |
| Footnote : | U-564 fired four single shots and heard one detonation and another possible detonation. |
| related attacks : | Angriff 1 |
| Convoy : | OG.71 |
| Route of convoy : | United Kingdom - Gibraltar (out) |
| Remark to convoy : | Sep 1939 to Jul 1940 via South Ireland, Jul 1940 to Aug 1943 via North Channel; later KMS. |