Nummer: 23302
| Area : | Mediterranean |
| Sea area : | North African Seaway |
| Date of attack : | 20.05.1942 |
| Time of attack : | 20:19 |
| Nationality of U-boat : | German |
| U-boat : | U 431 |
| Commander : | Dommes |
| Grid : | CO 9125 |
| presumed target type : | Tanker |
| presumed tonnage : | 3600 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | AT.46 |
| Date of observation : | 20.05.1942 |
| Nationality of target : | British |
| Actual type of target : | Steam Tanker |
| Name of target : | Eocene |
| Year of launch : | 1922 |
| Actual tonnage : | 4216 BRT |
| Actual result : | sunk |
| Position of target : | 31.56n 25.14e |
| Convoy : | AT.46 |
| Route of convoy : | Alexandria-Tobruk |
| Remark to convoy : | Nov.1941 to Jun.1942 (return traffic: TA) |