Nummer: 28612a
| Area : | Pacific Ocean |
| Sea area : | North Pacific |
| Date of attack : | 30.10.1944 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-12 |
| Commander : | Kudo |
| Grid : | [27n 142w] |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Number of torpedoes/mines : | 2 |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 29.10.1944 |
| Time of observation : | 21:05 |
| Nationality of target : | American |
| Actual type of target : | Steam Freighter |
| Name of target : | John A. Johnson |
| Year of launch : | 1943 |
| Actual tonnage : | 7176 BRT |
| Actual result : | sunk |
| Position of target : | 29.55n 141.25w |
| Footnote : | The assumption of two transports sunk came from Japanese radio intelligence. Only "John A. Johnson" was sunk, and her lifeboat and survivors were machine-gunned by submarine I-12/Kudo. |
| related attacks : | Angriff 1 |