Nummer: 18013
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 03.05.1944 |
| Time of attack : | 12:00 |
| Nationality of U-boat : | German |
| U-boat : | U 473 |
| Commander : | Sternberg |
| Grid : | BE 5182 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | CU.22 |
| Date of observation : | 03.05.1944 |
| Nationality of target : | American |
| Actual type of target : | Destroyer Escort |
| Name of target : | Donnell (DE.56) |
| Year of launch : | 1921 |
| Actual tonnage : | 1400 ts |
| Actual result : | not repaired, total loss |
| Position of target : | 47.48n 19.55w |
| Footnote : | "Donnell" was towed to harbor, but became a total loss. |
| Convoy : | CU.22 |
| Route of convoy : | Curacao - New York - Liverpool |
| Remark to convoy : | Since Feb 1943, Tanker Convoys (counter traffic = UC) |