Nummer: 17202
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 21.09.1943 |
| Time of attack : | 04:35 |
| Nationality of U-boat : | German |
| U-boat : | U 270 |
| Commander : | Otto |
| Grid : | AK 2882 |
| presumed target type : | Destroyer |
| presumed result : | sunk |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | ON.202 |
| Actual tonnage : | ---- -- |
| Actual result : | hit not ascertained |
| Footnote : | U-270 heard one gnat detonation after 11 min, certainly an end-of-run detonation. - The target may have been HMS "Itchen" or "Narcissus". |
| Convoy : | ON.202 |
| Route of convoy : | United Kingdom - North America |
| Remark to convoy : | 1st series: Jul 1941 to Mar 1943 ON and ONS combined, later ON mit continuing and ONS with new numbering (counter traffic HX and SC) |