TM 1-1510-218-10   3C-83 Figure 3C-29.  Start 3 Flight Plan/Load Page Table 3C-21.  Start 3 Flight Plan/Load Page Procedure NO. DESCRIPTION/FUNCTION 1 Effectivity  dates  for  ICAO  identifier  data base. 2 Select  for  catalog  of  available  alternate flight plans. 3 Replace   the   active   flight   plan   with   the alternate flight plan. 4 Load mission data from data cartridge. 5 Erase mission data. 6 Erase flight plan. 7 User-defined data cartridge label (defined at ground station). 8 Enter desired alternate flight plan number or name. 4.   Access the Navigation/ Communication Radio Information pages to view the desired presets and channels for each radio. 5.   Access the Status pages for all LRU's and confirm the current status conditions, including bus status, indicate GO for all LRU's. 6.   To prepare the FMS for recording the fault  history  of  the  flight,  access  the data    Loader    pages   and   select   the STAT   SAVE   line   select   key   twice.   This resets the date and time stamped to    the    current    day    and    time    and initializes the fault history record. 7.   Configure     the     system     for     desired behavior and performance. NOTE Position,   time,   and   date   are   periodically updated with GPS data when it is valid. The    Start    1    Page    is    initially    displayed following FMS startup. (3)   Navigational  Chart  Datums.    The  normal global  chart  datum  is  WGS-84.    The  current  system datum is indicated on the Start 1 page. (4)   Initializing Configuration Functions. (a)   Time  Annunciation.    On  the  Start  1 page, select the  UTC DISPLAY line select to enable a continuous    display    of    actual    UTC    time    on    the annunciation line.  Time will be continuously displayed on the annunciation line when enabled.  When higher priority  annunciations  "hide"  the  time,  press   CLR  to acknowledge the annunciation and restore time as the foremost annunciation. (b)   Freeze  Position.  When   FREEZE is selected on the Start 1 page, the position on the first line  of  the  page  will  be  frozen.    Typically,  the  GPS position  as  displayed  on  this  page  will  continuously change   as   the   GPS   solution   updates,   even   when stationary  on  the  ground.    When  frozen,  the  position can  be  copied  to  other  pages  as  desired  or  used  to begin initialization of the GPS receiver. 1   When a position is entered manually   at   line   1,   left   or   right,   the   position   is automatically  frozen  for  use.    To  unfreeze,  select  the freeze line and select again. 2   The position frozen on the first line is used by the system as waypoint 00 when loading a flight plan for active use and as the starting position of the model aircraft function.  If waypoint 00 is not at the desired  starting  position  when  initializing  the  system, enter  the  desired  position  on  the  Start  1  page  and either  load  a  new  flight  plan  from  the  alternate  flight plan  or  erase  the  flight  plan.    The  start  position  will then be inserted as waypoint 00 in the flight plan. (c)   Erasing System Data.  On the Start 3 page, two selections are available to erase the active flight plan and the user waypoint and markpoint lists.   The    erase    function    requires    confirmation    by    the operator, and when confirmed will erase data from the CDU’s   memory.      Erasure   does   not   affect   the   flight plans,   user   waypoint   and   markpoint   lists,   or   radio presets on the data cartridge. (d)   FMS   Guidance   Configuration.      On the Navigation Configuration 1 page,  the current mode of  flight  can  be  inspected  by  the  pilot  or  overridden  at pilot request.  Refer to Figure 3C-30 and Table 3C-22.