Nummer: 07901
| Area : | Western Area |
| Sea area : | US East Coast |
| Date of attack : | 16.02.1942 |
| Time of attack : | 18:30 |
| Nationality of U-boat : | German |
| U-boat : | U 564 |
| Commander : | Suhren |
| Grid : | CB 4798 |
| presumed target type : | Tanker id |
| presumed tonnage : | 6195 BRT |
| presumed result : | damaged |
| Used weapon(s) : | Gunfire |
| Date of observation : | 16.02.1942 |
| Nationality of target : | British |
| Actual type of target : | Motor Tanker |
| Name of target : | Opalia |
| Year of launch : | 1938 |
| Actual tonnage : | 6195 BRT |
| Actual result : | damaged |
| Position of target : | 37.38n 66.07w |
| Footnote : | "Opalia" was only slightly damaged by gunfire. |