TM 1-1510-225-10 3A-101 NOTE VERIFY FUEL message will replace VERIFY INPUTS  message  when  MAN  fuel  flow  is being used and FUEL ON BOARD has not been verified or updated on PLAN. All  blinking  weight  fields  must  be  verified or  values  inserted  using  the  ENTER  key, for GROSS WT field to display information. (6)   Special  Procedures.     The  following  are various   procedures   that   can   be   performed   during navigation, when applicable. (a)   Pilot Entered Leg Change. 1.   NAV key – Press to select Navigation  page.    A  pilot  entered leg  change  may  be  accomplished on   any   navigation   page   with   a FR/TO   field.      However,   NAV   1 page  is  recommended  to  simplify a  reasonability  check  of  DIS  and DTK. 2.   Line select key – Press to position cursor over the FR field. 3.   FR  waypoint  identifier   –  Insert  or verify. 4.   ENTER key  – Press.  If inserting a waypoint identifier not found in the active    flight    plan,    or    an    offset waypoint,   a   Waypoint   page   will appear.    The  following  procedure should be performed if a Waypoint page appears: a.     Waypoint  page  coordinates  – Verify   database   waypoint   or insert  pilot  entered  waypoint.   To insert waypoint coordinates  (cursor  over  POS field): b.     Latitude  –  Insert  (N  or  S  first, then    degrees,    minutes    and tenths of a minute). c. ENTER key – Press. d.     Longitude   –   Insert   (E   or   W first,   then   degrees,   minutes, and tenths of a minute). e.     ENTER key – Press. 5.     If  verifying  current  FR  waypoint   – Press  ENTER key and cursor box will   expand   to   enclose   both   FR and TO waypoint identifiers, which will activate the TO field. 6.     TO waypoint identifier   –  Insert  or verify. 7.     ENTER     key     –     Press.          If     a Waypoint page appears: a.     Waypoint  page  coordinates  – Verify   database   waypoint   or insert  pilot  entered  waypoint.   To insert waypoint coordinates  (cursor over POS fields). b.     Latitude  –  Insert  (N  or  S  first, then   degrees,   minutes,   and tenths of a minute). c. ENTER key – Press. d.     Longitude   –   Insert   (E   or   W first,   then   degrees,   minutes, and tenths of a minute). e.     ENTER key – Press. 8.   DIS, DTK – Check. NOTE The   pilot   entered   leg   change   procedure inserts  a  fence  indicated  by  (-----)  on  the Direct   To   and   Active   Flight   Plan   pages preventing auto leg change beyond the TO waypoint.    If  the  TO  waypoint  was  not  on the original active flight plan, the MSG light illuminates  and  the  system  message  page displays    NO    AUTO    LEG    CHG,    but    the AUTO  field  on  NAV  1  page  continues  to display AUTO. (b)   Preventing  Automatic  Leg  Changes.   The  auto  leg  change  function  allows  the  system  to automatically sequence from waypoint to waypoint on the active flight plan.  When the system is initialized it is in the automatic leg change mode unless changed by    the    pilot.        The    following    procedure    inhibits automatic leg changes. 1.   NAV key – Press to display NAV 1 page. 2.   Line select key – Press to position cursor over AUTO.