TM 1-1510-218-10 3C-137 into history, the entire procedure must be replaced into the flight plan. Figure 3C-82.  Working Copy SID/STAR Procedure Table 3C-61.  Working Copy SID/STAR Procedure NO. DESCRIPTION/FUNCTION 1 Press EDIT function key for Edit page. 2 Select the Sid or STAR definition. 3 Indicator  shows  the  definition  is  currently not  in  the  flight  plan,  but  the  active  flight plan SID/STAR procedure can be modified. 4 Select the desired SID or STAR. 5 Select the desired runway. 6 Press to access the Transition page. 7 Select the desired transition point (optional). Table 3C-61.  Working Copy SID/STAR Procedure  (Continued) NO. DESCRIPTION/FUNCTION 8 Select   to   modify   the   flight   plan   with   the selected SID/STAR procedure. This selection will replace the current procedure in the active flight plan. 9 Fat   arrows   indicate   current   selection   for insertion. (5)   Flight Plan Discontinuities. A discontinuity  in  the  flight  plan  may  occur  when  using SID/STAR's.      A   discontinuity   is   associated   with   a waypoint  and  requires  crew  action  to  resolve  in  order to obtain proper flight plan sequencing.  The waypoint associated with the discontinuity can be either the one preceding,   following,   or   both.      A   discontinuity   is inserted  into  the  flight  plan  under  the  following  three conditions. 1.   Following a STAR or preceding a SID when  it  is  inserted  in  the  flight  plan (DISCONTINUITY). 2.   When   a   leg   of   a   SID/STAR   has   a non–flyable leg (LEG DISCON). 3.   When a flyable leg of a SID/STAR has a    turn    direction    associated    with    it (LEG DISCON). Refer  to  Figure  3C–83  and  Table  3C-62  for  an example  of  the  Flight  Plan  page  with  a  discontinuity.   The VERIFY PROC annunciation and CDU MSG alert are  displayed  when  there  is  1  minute  to  go  before sequencing  into  the  discontinuity.    If  the  discontinuity becomes    the    active    waypoint,    a   DISCONTINUITY annunciation    is    displayed.        The    discontinuity    is resolved by the following methods. 1.   Delete the discontinuity. 2.   Delete  the  waypoint  the  discontinuity is associated with. 3.   Insert a waypoint between the discontinuity   and   the   waypoint   it   is associated with. 4.   Remove  the  SID/STAR  from  the  flight plan (except if the discontinuity is the active waypoint). 5.   Perform     a     direct–to     while     in     the discontinuity.