TM 1-1510-218-10   3C-71 Table 3C-15.  CDU Annunciations and Scratchpad Messages  (Continued) ANNUNCIATION / SP MESSAGE INITIATING CONDITION RESET MECHANISM LOCATION BLINKING NOT CLEARABLE CDU MSG ALERT INSERT PRESET AT? A preset has been selected for insertion into the scan list. Clear key or valid insert. SP N INSERT RTK BEFORE? A racetrack pattern with a defined fix has been selected for insertion into the  fpln  or  alternate  flight plan.   Clear key or valid insert. SP N INSERT SID BEFORE? A SID has been selected for insertion into the flight plan. Clear key or valid insert. SP N INSERT STAR BEFORE? A STAR has been selected for insertion into the flight plan. Clear key or valid insert. SP N INSERT   G-APR BEFORE? A GPS data base approach has been selected for insertion into the flight plan. Clear key or valid insert. SP N INSRT   T-APR BEFORE? A  Tactical  approach  has been selected for insertion    into    the    flight plan. Clear key or valid insert. SP N INSRT   V-APR BEFORE? A    Visual    approach    has been selected for insertion    into    the    flight plan. Clear key or valid insert. SP N INTERCEPT DEFINED Attempt    to    enter    VNAV parameters   for   or   attach a   Hold   or   pattern   to   a point defined as an intercept. Clear key. SP A intr active An  intercept  is  currently the flight plan TO waypoint. Deletion of intercept point via Direct-To. A N X INTR IS ACTIVE Attempt     to     delete     the intercept   from   the   flight plan during execution (current TO) or attempt to modify the flight plan course when an intercept is the TO waypoint. Clear key. SP A