Nummer: 28906c
| Area : | Pacific Ocean |
| Sea area : | Southeast Asia |
| Date of attack : | 17.02.1945 |
| Nationality of U-boat : | Japanese |
| U-boat : | Ro-109 |
| Commander : | Masuzawa |
| Grid : | Lingayen |
| presumed target type : | Destroyer |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | Task F. |
| Actual tonnage : | ---- -- |
| Actual result : | hit not ascertained |
| Position of target : | 60nm W Lingayen Gulf |
| related attacks : | Angriff 1 Angriff 2 |
| Convoy : | Task F. |