Nummer: 17004
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 21.07.1943 |
| Time of attack : | 00:27 |
| Nationality of U-boat : | German |
| U-boat : | U 455 |
| Commander : | Scheibe |
| Grid : | CG 5832 |
| presumed target type : | Steam Freighter |
| presumed result : | damaged |
| Number of torpedoes/mines : | 5 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | unknown |
| Footnote : | U-455 fired two 2-torpedo spreads and one stern shot. Two detonations were heard. |
| Convoy : | unknown |