TM 1-1510-225-10 3A-74 1.   FPL key – Press to display Flight Plan List page. 2.   Line  select  key    –   Press   to   position cursor on   blank  line  and  display  the Next FPL number. NOTE If several flight plans are displayed, position   cursor   on   page   then   press   the BACK  key  to  show  the  next  FPL  number available.  A flight plan may be selected by bringing the cursor onto the flight plan list page  and  entering  the  desired  number  in the cursor. 3.   ENTER key  –  Press  to  display  Flight Plan page. 4.   Appropriate departure airport identifier – Type into cursor field. NOTE Identifier    may    contain    from    one    to    six characters   in   any   combination   of   letters and numbers.  5.   ENTER key – Press. 6.   Waypoint    coordinates    and    data     – Verify.  If a specific runway is desired, press  the  appropriate  line  select  key to  place  the  cursor  over  the  desired runway. 7.   ENTER key – Press to store waypoint. 8.   Next waypoint – Type on flight plan.  A Standard  Instrument  Departure  (SID) may    be    selected    at    this    time    by placing  the  cursor  over  the  DEPART field   using   the   line   select   key   and pressing    ENTER.        A    jet    or    victor airway   may   also   be   entered   at   this time. 9.   Repeat steps 7 and 8 for the remaining waypoints. Figure 3A-59.  Departure 1/1 Page NOTE A maximum of 50 waypoint identifiers can be  entered  on  stored  flight  plans  and  100 on the active flight plan. Attempting to enter more than the maximum  allowed  will  cause  FPL  FULL  to be  displayed  with  the  identifier  flashing in the cursor. Attempting   to   enter   more   than   999   pilot entered waypoints in memory causes MEM FULL  to  be  displayed  on  the  Flight  Plan page.    The  MSG  light  will  flash  and  WPT MEM  FULL  will  be  displayed  on  System Messages page. If  necessary,  use  the  PRV  or  NXT  key  to cycle through all available Flight Plan List pages.  If   all   56   flight   plans   are   used,   NO   FPL AVAIL  will  appear  in  the  field.    Any  of  the stored flight plans may be erased to allow additional     entries.          The     procedure     is described under modifying a flight plan. The  flight  plan  is  referenced  according  to departure    and    destination    pairs    and    is automatically    sequenced    in    alphabetical order on the Flight Plan List page. (2)   Using     Duplicate     Waypoint     Identifiers.   There are several waypoints around the world with the same identifier.  If the identifier selected has more than one  waypoint  associated  with  it,  additional  pages  will be indicated on line 1 (that is 1/2 etc.).  The waypoint nearest the aircraft position will be displayed first. (a)   Selecting an Alternate Waypoint Location.