I guess, you mentioned about a COBOL MOVE "Statement"..
Please mention clearly whether it is COBOL MOVE "STATEMENT" or JCL "STEP"? If you are not aware:
If it is COBOL MOVE statement, with out offset value you may not be able to find the exact location unless you have ABENDAID facility where it prints the MOVE statement failed in the job log. Generally MOVE fails when a non-numeric moved to a numeric variable and hence if you want to do a debug, you better put some display statements after each numeric move displaying its contents.. by seeing the last display in the job log you can find which move statement failed. If you have ABENDAID tool on Mainframe, you can go to the tool and view the failed job information.
I would say you are unlucky, if you have all the 1000 MOVE statements are numeric moves
Hope this helps..