Thank for answer. I made searche result attacks submarines and find this error. I not know, what right, so KTB BDU not last source. It is good, that you can see u-boot KTB. I not have KTB this boat and so need question this.

For you (and other) copy from KTB:
20.February 1944.
I. U JT 22 - FD 27 U 257 - Op(BD 60) U 448 - BF 47 U 714 - BE 56
JT 24 - KH 94 260 - AL 87 510 - Op(MP 50) 734 - Op(BE 15)
66 - Op(EU 50) 262 - BF 47 516 - BF 82 761 - CG 58
91 - Op(BE 18) 264 - Op(BE 47) 518 - DQ 22 764 - Op(BE 13)
123 - Op(EU 70) 267 - BF 58 530 - BF 57 802 - Op(AK)
154 - DE 37 271 - Op(BE 42) 532 - JC 26 843 - BF 55
168 - LW 25 281 - Op(BE 14) 539 - Op(BB 66) 845 - Op(BD 41)
170 - CF 65 283 - Op(AL 78) 546 - Op(AL 74) 846 - Op(AK)
177 - FT 50 333 - BE 93 547 - BF 49 852 - DF 49
178 - KS 54 358 - BF 47 549 - Op(BD 36) 953 - BF 68
183 - Op(LC 80) 386 - BE 46 550 - AE 87 962 - Op(BE 93)
188 - KH 17 406 - BE 18 552 - BF 45 963 - Op(BE 11)
193 - BF 87 413 - Op(BF 24) 571 - Op(BE 14) 984 - AL 6449
212 - Op(BE 15) 421 - BF 55 603 - Op(BE 18) 985 - Op(BE 11)
214 - BF 55 424 - Op(BE 18) 608 - BE 1821 986 - AE 83
218 - BE 86 437 - Op(BE 1949) 650 - BE 43 989 - Op(BE 11)
231 - BE 15 441 - Op(AL 78) 666 - BE 46 1059 - AE 85
256 - Op(BE 15) 445 - BE 66 709 - Op(BE 18) 1062 - ER 23


On Return Passage: U 168 - 188 - 231 - 260 - 386 - 406 - 445 - 516 - 530 - 532 - 547 - 650 - 666 - 714 - 762 - 953 - 984.
Entered Port: U 953 - La Pallice.
Sailed: - . -

II. Air Reconnaissance: None.

III. Reports on the Enemy:
a) 1) U 546 was attacked by a Sunderland without Radar on 16.2. Aircraft was driven off to a safe alarm range of 3.7 cm., no bombs after diving.
2) U 764 fired T 5s simultaneously from bow and stern tubes at 2 destroyers at 2011 in BE 1843. Explosions after 3 minutes 10 seconds and 2 minutes 02 seconds. Loud sounds of sinking and breaking-up. Then no more hydrophone bearings.
3) U 437 sighted an enemy battleship at 2141 in BE 4246.
4) U 66 sighted a convoy with Jervis class destroyer at 0730/19/2 in ET 6267 to 55. T 5 miss at destroyer, end-of-run detonation after 12 minutes. Boat suspects this was due to the effect of the tropics.
b) None.
c) 1) 2 ASV locations in unresolved positions.
2) 15 enemy units were observed by radio, mainly in area AL 90, BE 40/50.
d) None.

IV. Current Operations:
a) None.
b) U 550 is to make for AK 20 upper half. Boat is to relieve U 802 as weather boat.
c) None.
d) 1) U 967 reported her position from CH 6811 and thus enters the Mediterranean.
2) U 762 must be presumed lost. The boat last reported on 8.2. that she had been bombed by aircraft at low level on 7.2. in BE 12. On that day the boat still had 20 cbm. fuel and should therefore have entered port by now. No information as to cause of loss.
3) Serial order No. 9 was radioed to all boats (in Appendix).

V. Reports of Success:
U 764 2 destroyers.