Nummer: 26520
| Area : | Indic Ocean |
| Sea area : | South Africa |
| Date of attack : | 20.11.1942 |
| Time of attack : | 11:40 |
| Nationality of U-boat : | German |
| U-boat : | U 177 |
| Commander : | Gysae |
| Grid : | KP 9910 |
| presumed target type : | Steam Freighter id |
| presumed tonnage : | 7191 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 20.11.1942 |
| Nationality of target : | American |
| Actual type of target : | Steam Freighter |
| Name of target : | Pierce Butler |
| Year of launch : | 1942 |
| Actual tonnage : | 7191 BRT |
| Actual result : | sunk |
| Position of target : | 29.40s 36.35e |
| updated on: | 00.00.0000 |
| Remark: | 36.35e |