Nummer: 16504
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 05.05.1943 |
| Time of attack : | 02:22 |
| Nationality of U-boat : | German |
| U-boat : | U 707 |
| Commander : | Gretschel |
| Grid : | AJ 6434 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 7500 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 3- |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | ONS.5 s |
| Date of observation : | 05.05.1943 |
| Time of observation : | 00:24 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | North Britain |
| Year of launch : | 1940 |
| Actual tonnage : | 4635 BRT |
| Actual result : | sunk |
| Position of target : | 55.08n 42.43w |
| Footnote : | U-707 reported the sinking of a freighter of "City of Manchester"-type 5sm behind the convoy. "North Britain" sank in 2 min. |
| Convoy : | ONS.5 s |
| Route of convoy : | United Kingdom - North America (slow) |
| Remark to convoy : | 2nd series: Apr 1943 with new numbering (counter traffic SC) |