Nummer: 28710c
| Area : | Pacific Ocean |
| Sea area : | Southeast Asia |
| Date of attack : | 03.01.1945 |
| Nationality of U-boat : | Japanese |
| U-boat : | Ha-84 |
| Commander : | Makuda (Sakuichi) |
| Grid : | off Cebu |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | unknown |
| Actual result : | hit not ascertained |
| Position of target : | Mindanao Sea |
| Footnote : | Japanese sourcs claim that midget submarine Ha-84 sank a cruiser and four cargo ships between January and March, 1945. - Compare attacks from 25 Jan., 21 Feb. (DD "Renshaw"), 10 and 26 Mar. |
| related attacks : | Angriff 1 Angriff 2 |
| Convoy : | unknown |