Nummer: 27403
| Area : | Indic Ocean |
| Sea area : | Indian Seaway |
| Date of attack : | 29.02.1944 |
| Nationality of U-boat : | German |
| U-boat : | U 183 |
| Commander : | Schneewind |
| Grid : | LD 4379 |
| presumed target type : | Tanker |
| presumed tonnage : | 12000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 29.02.1944 |
| Time of observation : | 15:30 |
| Nationality of target : | British |
| Actual type of target : | Motor Freighter |
| Name of target : | Palma |
| Year of launch : | 1941 |
| Actual tonnage : | 5419 BRT |
| Actual result : | sunk |
| Position of target : | 05.51n 79.58e |