Nummer: 18503
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 03.09.1944 |
| Time of attack : | 00:06 |
| Nationality of U-boat : | German |
| U-boat : | U 482 |
| Commander : | Matuschka |
| Grid : | AM 5282 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 5000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | ONF.251 |
| Date of observation : | 02.09.1944 |
| Nationality of target : | Norwegian |
| Actual type of target : | Steam Freighter |
| Name of target : | Fjordheim |
| Year of launch : | 1930 |
| Actual tonnage : | 4115 BRT |
| Actual result : | sunk |
| Position of target : | 55.55n 09.28w |
| Convoy : | ONF.251 |
| 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) |