Nummer: 28817b
| Area : | Pacific Ocean |
| Sea area : | Southeast Asia |
| Date of attack : | 29.01.1945 |
| Time of attack : | spät |
| Nationality of U-boat : | Japanese |
| U-boat : | Ro-46 |
| Commander : | Tokunaga |
| Grid : | W Iba |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | unknown |
| Actual result : | hit not ascertained |
| Position of target : | W Iba (Luzon) |
| related attacks : | Angriff 1 |
| Convoy : | unknown |
| updated on: | 00.00.0000 |