Nummer: 27400
| Area : | Indic Ocean |
| Date of attack : | 26.02.1944 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-37 |
| Commander : | Nakagawa |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 26.02.1944 |
| Time of observation : | 18:35 |
| Nationality of target : | British |
| Actual type of target : | Motor Freighter |
| Name of target : | Sutlej |
| Year of launch : | 1940 |
| Actual tonnage : | 5189 BRT |
| Actual result : | sunk |
| Position of target : | 08.00s 70.00e |