Nummer: 15411
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 08.03.1943 |
| Time of attack : | 23:03 |
| Nationality of U-boat : | German |
| U-boat : | U 642 |
| Commander : | Brünning |
| Grid : | AK 3857 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 3500 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | SC.121 s |
| Date when ship was reported missed : | 11.03.1943 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Leadgate |
| Year of launch : | 1925 |
| Actual tonnage : | 2125 BRT |
| Actual result : | sunk |
| Position of target : | 58n 15w |
| Footnote : | U-642 sank an independent ship, probably the straggler "Leadgate". |
| Convoy : | SC.121 s |
| Route of convoy : | Sydney (Nova Scotia) - United Kingdom |
| Remark to convoy : | Slow (Atlantic) Convoys since Aug 1940, fast ones = HX, counter traffic = ON. |