Condition not working ?

Hi All,
I have a unique problem in that I wrote a small pgm to simply copy members
of a source file to a folder.
The loop where RECARR(X) eventually becomes blank and should then leave
does not seem to work.
I ran it in debug and physically saw RECCARR(X) contained *blanks and then
watched it continue processing.
Is there something inherently wrong with the logic which I can't see or is
there something else happening here?
This is not the first time I have seen this happen !

DSPC_NAM          S             20    INZ('MBRLIST   QTEMP')
     DFMT_NAM          S              8    INZ('MBRL0100')
     DOVERRIDE         S             10    INZ('1')
     DSTRPOS           S              9B 0 INZ(513)
     DDTALEN           S              9B 0 INZ(10)
     DRETCODE          S             30
     DRECARR           S             10    DIM(9999)
     DDB_FILE          S             20
     DX                S              5  0
     DTESTLEN          S              2  0

     DCMDLEN           S             15  5
     DCMD1             S             18    INZ('CPYTOPCD FROMFILE(')
     DCMD2             S              8    INZ(') TOFLR(')
     DCMD3             S             11    INZ(') FROMMBR(')
     DCMD4             S              8    INZ(') TODOC(')
     DCMD5             S             15    INZ(') REPLACE(*YES)')
     DTODOC            S             13

     DCOMMAND          S            110


     C     *ENTRY        PLIST
     C                   PARM                    FILENAME         10
     C                   PARM                    LIBRARY          10
     C                   PARM                    MEMBER           10
     C                   PARM                    FOLDER           10

     C     MBRLIST       PLIST
     C                   PARM                    SPC_NAM
     C                   PARM                    FMT_NAM
     C                   PARM                    DB_FILE
     C                   PARM                    MEMBER
     C                   PARM                    OVERRIDE

     C     RTVLIST       PLIST
     C                   PARM                    SPC_NAM
     C                   PARM                    STRPOS
     C                   PARM                    DTALEN
     C                   PARM                    RECARR(X)
     C                   PARM                    RETCODE

     C     QCMDLIST      PLIST
     C                   PARM                    COMMAND
     C                   PARM                    CMDLEN


     C                   EVAL      DB_FILE = FILENAME + LIBRARY

     C                   IF        MEMBER = '*ALL'
     C                   CALL      'RCRTUS'
     C                   PARM                    SPC_NAM
     C                   CALL      'QUSLMBR'     MBRLIST
     C                   ENDIF

     C                   CLEAR                   X
     C                   DOU       RECARR(X) = *BLANKS
     C                   EVAL      X = X + 1
     C                   CALL      'QUSRTVUS'    RTVLIST
     C                   EVAL      STRPOS = STRPOS + 10
     C                   ENDDO


     C                   CLEAR                   X
     C                   DOU       RECARR(X) = *BLANKS
     C                   EVAL      X = X + 1
     C                   CLEAR                   TESTLEN
     C                   EVAL      TESTLEN = %LEN(%TRIM(RECARR(X)))

     C                   IF        RECARR(X) = *BLANKS
     C                   LEAVE
     C                   ELSE

     C                   CLEAR                   TODOC
     C                   IF        TESTLEN > 8
     C                   EVAL      TODOC = %SUBST(RECARR(X):1:8) + '.'
     C                             + %SUBST(RECARR(X):9:2)
     C                   ELSE
     C                   EVAL      TODOC = RECARR(X)
     C                   ENDIF

     C                   EVAL      COMMAND = CMD1 + %TRIM(LIBRARY) + '/'
     C                             + %TRIM(FILENAME) + CMD2 + %TRIM(FOLDER)
     C                             + CMD3 + %TRIM(RECARR(X)) + CMD4
     C                             + %TRIM(TODOC) + CMD5


     C                   EVAL      CMDLEN = %LEN(%TRIM(COMMAND))
     C                   CALL      'QCMDEXC'     QCMDLIST
     C                   ENDIF
     C                   ENDDO

     C                   SETON                                        LR


* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* This is the RPG/400 Discussion Mailing List!  To submit a new         *
* message, send your mail to "RPG400-L@midrange.com".  To unsubscribe   *
* from this list send email to MAJORDOMO@midrange.com and specify       *
* 'unsubscribe RPG400-L' in the body of your message.  Questions should *
* be directed to the list owner / operator: david@midrange.com          *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *