Nummer: 28008
| Area : | Pacific Ocean |
| Sea area : | South Pacific |
| Date of attack : | 26.07.1942 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-11 |
| Commander : | Hichiji |
| Grid : | Sydney |
| presumed target type : | Steam Freighter |
| presumed result : | damaged |
| Used weapon(s) : | Gunfire |
| Date of observation : | 26.07.1942 |
| Time of observation : | 04:45 |
| Nationality of target : | Australian |
| Actual type of target : | Steam Freighter |
| Name of target : | Coolana |
| Year of launch : | 1921 |
| Actual tonnage : | 2197 BRT |
| Actual result : | target visibly missed |
| Position of target : | 60nm NE Gabo Island |
| Footnote : | From Japanese submarines off Sydney I-11 reported three ships sunk and one damaged, I-175 reported two sunk and one damaged. In addition there were attacks by I-24 and I-174. These are the most probable assessments from Japanese and Australian sources. "Murada" and "Coolana" escaped undamaged. |