Nummer: 11706b
| Area : | Western Area |
| Sea area : | Carribean Sea |
| Date of attack : | 18.08.1942 |
| Time of attack : | 09:13 |
| Nationality of U-boat : | German |
| U-boat : | U 553 |
| Commander : | Thurmann |
| Grid : | DM 9691 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 5000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | TAW.13 |
| Date of observation : | 18.08.1942 |
| Actual result : | sunk |
| related attacks : | Angriff 1 Angriff 2 |
| Convoy : | TAW.13 |
| Route of convoy : | Trinidad - Aruba - Key West |
| Remark to convoy : | Jul to Aug 1942, then TAG. Counter traffic = WAT |
| updated on: | 05.05.2019 |
| Changes: | 1) War Diary Admirality: BLANKAHOLM um 04h05 versenkt. |