Nummer: 28104
| Area : | Pacific Ocean |
| Sea area : | West Pacific |
| Date of attack : | 11.10.1942 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-25 |
| Commander : | Tagami |
| presumed target type : | Submarine |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 11.10.1942 |
| Time of observation : | 11:15 |
| Nationality of target : | Soviet |
| Actual type of target : | Submarine |
| Name of target : | L-16 |
| Year of launch : | 1939 |
| Actual tonnage : | 1039 ts |
| Actual result : | sunk |
| Position of target : | 46.41n 138.56w |
| Footnote : | The two Soviet submarines L-15 and L-16 were transiting from Dutch Harbor to San Francisco. I-25 assumed the submarines were U.S. |