TM 1-1510-218-10 3C-64 Table 3C-15.  CDU Annunciations and Scratchpad Messages  (Continued) ANNUNCIATION / SP MESSAGE INITIATING CONDITION RESET MECHANISM LOCATION BLINKING NOT CLEARABLE CDU MSG ALERT Ö status Detected     failure     of     an LRU   or   interface   signal (3-second filter). Clear key or selection  of  the STAT key. A B X ÖSTATUS A   request   for   display   or operation  that  cannot  be provided  due  to  failure  or the LRU is under test. Clear key. SP A Ö timer 1 Down-count to zero. Clear key. A B X Ö timer 2 Down-count to zero. Clear key. A B X Ö timer 3 Down-count to zero. Clear key. A B X Ö version CDU    soft ware     versions incompatible. Replace or power down unit with incorrect version. A B X X cir active Circle pattern is currently being executed. Circle pattern canceled. A N X CIR IS ACTIVE Attempt to delete or modify the circle fix, delete Mission Flight Patterns  (MFP)  attribute, or  modify  the  flight  plan course or attempt to insert    a    PPOS    hold    or insert   a   waypoint   at   the active waypoint during pattern execution. Clear key. SP A CONF LOADXXXXXXX X Request to load the alternate flight plan XXXXXXXX into the CDU from the data cartridge. Clear key, reselect  entered ALTN. SP N CONFIRM ADD Request   to   add   a   new user waypoint to the data base. Clear key, or select Add. SP N CONFIRM   ALTN RMV Request     to     remove     a Pattern from the alternate flight plan. Clear key or reselect ALTN FPLN. SP N CONFIRM CHNG TO CIR Request  to  change  MFP type to circle. Clear key or selection of PTRN CHNG. SP N CONFIRM CHNG TO FG8 Request  to  change  MFP type to figure 8. Clear key or selection of PTRN CHNG. SP N CONFIRM CHNG TO RTK Request  to  change  MFP type to racetrack. Clear key or selection of PTRN CHNG. SP N