You could use the <b>GET LFA1</b> statement to evaluate LFA1-EMNFR. Try something like:
The LDB driver program would automatically fill the work area of LFA1 and make it available for you in your program. You could then manipulate it as you need. Hope this helps.
Could you please post the portion of code where you are evluating the contents of this field. Additionally, have you tried using a direct SELECT statement for the same selection criterion? And have you debugged the driver program to see if the value is being returned for the selection criterion passed to it.