Nummer: 09910
| Area : | Western Area |
| Sea area : | US East Coast |
| Date of attack : | 28.05.1942 |
| Time of attack : | 03:12 |
| Nationality of U-boat : | German |
| U-boat : | U 506 |
| Commander : | Würdemann |
| Grid : | DC 5844 |
| presumed target type : | Steam Freighter id |
| presumed tonnage : | 4457 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Gunfire |
| Date of observation : | 28.05.1942 |
| Time of observation : | 02:15 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Yorkmoor |
| Year of launch : | 1925 |
| Actual tonnage : | 4457 BRT |
| Actual result : | sunk |
| Position of target : | 29.30n 72.29w |