Installation Instructions

GTN 6XX/7XX AML STC Installation Manual 190-01007-A3
Page 2-30 Rev. 4
o The top edge of the GTN unit is no lower than the bottom edge of the primary flight
instruments or the unit is line abreast with the affected CDI.
4. If the GTN unit is mounted to the left of the primary instruments, the internal display of
annunciation within the GTN unit is considered to be within the acceptable field-of-view if the
following criteria are met:
o The right edge of the GTN unit is within 10.0 ± 0.25 inches of the primary view center line
and;
o The top edge of the GTN unit is no lower than the bottom edge of the primary flight
instruments or the unit is line abreast with the affected CDI.
If the internal display of annunciation within the GTN unit does not meet the criteria for acceptable field-
of-view as defined above, an external source selection annunciator must be integrated in the affected
CDI/HSI or an additional annunciator which clearly indicates the CDI/HSI source as VLOC or GPS must
be installed within 13.6 ± 0.25 inches of the view centerline.
All annunciations must be within 13.6 ± 0.25 inches of the view centerline.
Glareshield
Instrument “T” Centerline
1
1
NOTES:
FOR AIRCRAFT WITHOUT THE BASIC INSTRUMENT “T” CONFIGURATION, THE CENTER OF THE PILOT’S YOKE
OR CONTROL STICK IN THE NEUTRAL POSITION SHOULD BE USED TO DETERMINE THE CENTERLINE. IF THE
CONTROL YOKE/STICK IS OFFSET FROM THE CENTER OF THE PILOT’S SEAT, AN IMAGINARY LINE EXTENDED
THROUGH THE CENTER OF THE PILOT’S SEAT MAY BE USED AS THE PRIMARY VIEW CENTERLINE.
THE TOP EDGE OF THE GTN UNIT SHOULD BE NO LOWER THAN THE BOTTOM EDGE OF THE PRIMARY
FLIGHT INSTRUMENTS.
FOR AIRCRAFT IN WHICH THE TYPE CERTIFICATED CDI OR HSI LOCATION IS BELOW THE BASIC “T”, THE
LOWER LIMIT OF THE ACCEPTABLE FIELD-OF-VIEW SHOULD BE THE BOTTOM OF THE CDI OR HSI.
2
3
2 3
UPPER LIMIT
PILOT’S INSTRUMENT “T”
ACCEPTABLE
FIELD
-OF-
VIEW
AREA
LOWER LIMIT
13.9 13.9
10.3
10
.9
GTN 750 SHOWN
Figure 2-15. GTN CDI Source Selection Annunciation Field of View (±30°)