Nummer: 28014
| Area : | Pacific Ocean |
| Sea area : | North Pacific |
| Date of attack : | 30.08.1942 |
| Nationality of U-boat : | Japanese |
| U-boat : | Ro-61 |
| Commander : | Tokutomi |
| Grid : | Adak |
| presumed target type : | Heavy cruiser |
| presumed tonnage : | 9100 ts |
| presumed result : | damaged |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 30.08.1942 |
| Nationality of target : | American |
| Actual type of target : | |
| Name of target : | Casco (AVP 12) |
| Year of launch : | 1941 |
| Actual tonnage : | 1695 BRT |
| Actual result : | damaged |
| Position of target : | Nazan Bay (Atka) |
| Footnote : | Ro-61 reported one cruiser of "Northampton"-class sunk. - Aircraft tender "Casco" was beached and later salvaged and repaired. |