Nummer: 07800a
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 11.02.1942 |
| Time of attack : | 01:33 |
| Nationality of U-boat : | German |
| U-boat : | U 136 |
| Commander : | Zimmermann |
| Grid : | AL 5235 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 5000 BRT |
| presumed result : | damaged |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | SC.67 |
| Date of observation : | 10.02.1942 |
| Time of observation : | 00:35 |
| Nationality of target : | Norwegian |
| Actual type of target : | Motor Freighter |
| Name of target : | Heina |
| Year of launch : | 1925 |
| Actual tonnage : | 4028 BRT |
| Actual result : | sunk |
| Position of target : | 56.10n 21.07w |
| Footnote : | U-136 observed an additional fire column after a hit on a corvette, and later sighted debris and two life boats. During the second attack there was only one detonation heard but not observed. |
| related attacks : | Angriff 1 Angriff 2 |
| Convoy : | SC.67 |
| Route of convoy : | Sydney (Nova Scotia) - United Kingdom |
| Remark to convoy : | Slow (Atlantic) Convoys since Aug 1940, fast ones = HX, counter traffic = ON. |
| updated on: | 00.00.0000 |