Nummer: 21711
| Area : | Baltic Sea |
| Sea area : | Gulf of Finland |
| Date of attack : | 27.11.1944 |
| Time of attack : | 13:45 |
| Nationality of U-boat : | German |
| U-boat : | U 679 |
| Commander : | Aust |
| Grid : | AO 3571 |
| presumed target type : | Fleet Minesweeper |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo with preset course |
| Nationality of target : | Soviet |
| Actual type of target : | Fleet Minesweeper |
| Name of target : | T-217 (?) |
| Year of launch : | 1940 |
| Actual tonnage : | 441 ts |
| Actual result : | hit not ascertained |
| Position of target : | off Baltisk (Tallinn) |
| Footnote : | Minesweeper T-217 (type 53U) was not sunk by U-679. |
| updated on: | 13.02.2013 |
| Remark: | 13u45 |
| Changes: | 1) duikboot: A-Zeit 13u45 2) T-217/KAdm Yurkovskii (Projekt 53U) Schicksal ? |