Hi, New step in my search about the crash of the Halifax LL114 (Night 7 to 8th Feb. 44) I have now the operations record book of the Squadron 138. (AIR27/956/1) I know now the previous mission of this crew. I found at the 13 dec. 1943 that all the crew came from 1666 CU to Sqd 138. For a french guy: what is the 1666 CU ? Nothing about the meaning of Operation JOHN 25 and drop zone of these operation. Thank for your help. Andy.