Nummer: 20614
| Area : | Arctic Ocean |
| Date of attack : | 03.04.1944 |
| Time of attack : | 01:25 |
| Nationality of U-boat : | German |
| U-boat : | U 312 |
| Commander : | Nicolay |
| Grid : | AB 1975 |
| presumed target type : | Destroyer |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | JW.58 |
| Actual tonnage : | ---- -- |
| Actual result : | hit not ascertained |
| Footnote : | U-312 heard a gnat detonation after 1:30 min, probably a premature. |
| Convoy : | JW.58 |
| Route of convoy : | Loch Ewe - (Iceland) - Kola Fjord - (Arkhangelsk) |
| Remark to convoy : | Since Dec 1942, former PQ (counter traffic = RA) |