Nummer: 27017b
| Area : | Indic Ocean |
| Date of attack : | 09.09.1943 |
| Time of attack : | 04:00 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-27 |
| Commander : | Fukumura |
| presumed target type : | Steam Freighter |
| presumed result : | target visibly missed |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 09.09.1943 |
| Nationality of target : | American |
| Actual type of target : | Steam Freighter |
| Name of target : | Lyman Stewart |
| Year of launch : | 1943 |
| Actual tonnage : | 7176 BRT |
| Actual result : | target visibly missed |
| Position of target : | 07.25n 73.12e |
| related attacks : | Angriff 1 |