If you inspect the file, column 1 contains a print-control character for single, double-spacing. One technique to force a data line to be generated is to use a non-print character such as hex-00, as in:
PUT '00'X;
The caveat here is that you are asking for system-controlled line-skip and pagination print with the RECFM=FBA and the FILE stmt parameter PRINT, correct? The only alternative I can identify for you is to put something other than a blank line, as I have described above.
Scott Barry
SBBWorks, Inc.