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point. The end-of-approach point can be a runway
threshold, touchdown point, or a Missed Approach Point (MAP). One
or two additional waypoints may be defined along the approach path.
Only one of the optional waypoints may be located outside the FAF,
and only one may be between the FAF and the end-of-approach
point. Additionally, a vertical flight path through the approach
waypoints may be defined.
The procedure used to define and store a runway in the data base is
explained under DATA KEY - PILOT-DEFINED RUNWAY in this
section.
The PLT APPRS pages provide a directory of all the airports with
pilot approaches stored in the data base. The number of PLT
APPRS pages is dependent upon the number of pilot defined
approaches which are stored (up to 100 pilot defined approaches
may be stored). The PREV and NEXT keys provide access to other
PLT APPRS pages.
Section IV
Data Base
 
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AIRPORT  -  Entering  an  airport  identifier  or  entering  the  reference
number  of  one  of  the  listed  approaches  into  this  entry  field  will
change  the  listing  to  show  approaches  defined  for  the  entered
airport.  The CREATE line select key will be available only after entry
of an airport identifier.
 
APPR  -  Entering  the  reference  number  of  one  of  the  listed
approaches will prompt entry of transitions for the approach.
 
Section IV
Data Base
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Approach Transition Page
This page is accessed automatically after a new leg has been
defined or an existing leg has been modified or deleted. This page
is also accessed from the Pilot Approach Directory page by selecting
the TRANS LEGS prompt. The TRANS LEG prompt is displayed
after a valid transition name has been entered. Note that the
segment identifier ‘T’ indicates an approach transition.
CREATE - Pressing the CREATE line select key will cause the first
Approach Definition page to be displayed. The page will have all
fields blank except that the ARPT entry field will be pre-filled with the
identifier entered on the PLT APPRS directory page.
Section IV
Data Base
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Approach Definition Page #1
This page displays information about an existing approach, or
provides the means to define a new approach. The page defines the
designated nav facility for which the approach is based, the date of
creation which is automatically entered for reference use, and shows
the basic lateral geometry from the FAF to the runway or MAP.
Entries made on this page are the minimum required to define an
approach. Under the page title is the name of the approach. No
entries can be made on this line. As each entry is made, the cursor
will automatically advance to the next appropriate entry field when
the ENTER key is pressed.
ARPT - The airport identifier.
RUNWAY - Entering a runway designation will result in a search of
the runway data base for coordinates to use in defining an approach.
Pressing the LIST key will call up a list of previously defined
runways. If a nonexistent runway is entered, the display will
automatically revert to the Runway Definition page.
TYPE - Pressing the TYPE line select key will display the
APPRTYPE page. Selections on the left (VOR, VFR, RNV and
TACAN) define the type of FMS approach. Selections on the right
side (ILS, LOC, BC) is for nav-to-nav transitions through the flight
guidance system, if the FMS is interfaced with certain advanced
EFIS systems. A RETURN option is presented to return the display
to the original page with no changes.
Section IV
Data Base
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The difference between ILS, BC, LOC, VFR, VOR, TACAN and RNV
approaches are the Q factor and the nav facility requirements.
Should the Q factor or nav input requirements not be met, the HSI
NAV flags will come into view.
• ILS Approach- For installations with compatible EFIS
software, ILS approaches may be created and linked into the
flight plan. When ARM APPR is selected on the FMS, the FMS
will automatically tune the ILS receiver to the appropriate
frequency and the EFIS arms for capture. When the pilot arms
APPR on the Flight Guidance System, the aircraft will transition
from lateral and vertical FMS mode to approach using the localizer
and glideslope signals from the ILS receiver. If the pilot flies the
　
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