Subfile compile problem

I am reworking an old subfile program.  I am getting errors when I compile 
the display file that indicates that the position (78) is not valid. 
Segment of code and error are attached.  This is probably something very 
simple that I'm overlooking-but it is totally escaping me.  If I change 
the position to 77, it will compile, but naturally it overlaps the 
previous field and doesn't show.  Anyone see what I'm missing?  (And the 
dspsize is defined as 80 wide.)
A* SUBFILE SCREEN 1 *  
A********************  
A          R SFL71S3                   SFL  
A            SFOPTN         1A  B  9  2VALUES(' ' '2' '4' '5')  
A                                      CHECK(ER)  
A  49                                  DSPATR(PC)  
A            SHTYPE    R        O  9  4REFFLD(ZZR47/TYPE47 ZZP47) 
A            SFACCN    R   12   O  9  9REFFLD(ACCN47 ZZP47)  
A            SFDESC        35A  O  9 22  
A  68                                  DSPATR(HI)  
A            SFAMT     R        O  9 58REFFLD(AMT47 ZZP47)  
A                                      EDTCDE(J)  
A            SFDBIT         2A  O  9 72  
A            SFCRDT         2A  O  9 75  
A*         HIDDEN FIELDS  
A            SHDESC    R        H      REFFLD(ACDESC FLP003)  
A            SHCDXT    R        H      REFFLD(CDXT47 ZZP47)  
A            SFACCF         1A  O  9 78  
*                       CPD7840-******
 
************************************************************************** 


     ID      Severity  Number

* CPD7840      30        1      Message . . . . :   Position number for 
field not valid.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Thank in advance


 Jim Hawkins