31-00 MAINTENANCE Message on the STATUS SD page

31-00-01 QAR MAINTENANCE Message (If Installed)
31-00-02 DMU/ACMS MAINTENANCE Message
31-00-03 DAR MAINTENANCE Message (If Installed)
31-00-04 CFDIU MAINTENANCE Message
31-00-05 DMC 1/3 MAINTENANCE Message
31-00-06 DMC 2/3 MAINTENANCE Message
31-00-07 DFDR ACCEL MAINTENANCE Message (If Installed)