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89000046-014
KSN 780/8XX/900 AeroNav AML STC Installation Manual for Helicopters
Rev 0
Page 2-1
© Honeywell International Inc. Do not copy without express permission of Honeywell.
2. Installation Considerations
The following section will describe installation instructions for the AeroNav XXX Unit. The AeroNav
XXX should be installed using standard industry practice while following guidance in FAA AC 43.13-( ),
AC 20-138 ( ), and AC 20-67( ).
2.1 Plug & Play Considerations
The AeroNav XXX is designed to be a slide-in replacement for a GNS-530/W or GNS-430/W. For
replacement installations in rotary wing aircraft, the existing previously approved tray be utilized.
However, all electrical wiring, including power(s) and ground(s), should be verified per installation
data shown in Appendix D: Electrical Interface Drawings. Note that 14v aircraft may be required to
replace the installed circuit breaker and power and ground wiring to accommodate the AeroNav XXX.
If the unit being replaced was a WAAS-enabled device, then the WAAS antennas previously installed
can be reused, assuming they are one of the GPS WAAS antennas identified in Section 3.3.5 Table 34.
If the unit being replaced was not an HTAWS-enabled device, or if the HTAWS Audio output signals
were not already connected to the aircraft audio panel(s), then some additional wiring will be
required from the AeroNav XXX tray to the aircraft audio panel(s) as identified in Section 6.6 in order
to supply AeroNav XXX terrain alerting audio (Forward Looking Terrain Alerting FLTA functionality)
and TOD chime to the headsets.
For those installations that use a combined AeroNav XXX – and a Mode S ADS-B transponder, the on-
ground/in-air discrete signal wire may need to be added from the AeroNav XXX tray to the
transponder tray as identified in Section 6.11.
All installations must verify the aircraft complies with Section 2.4.1 after completing the AeroNav XXX
installation.
Note:
Installations replacing an existing non-WAAS GPS/NAV/COM transceiver can upgrade to a
WAAS installation using section 3 of this manual.
Note:
Installations replacing a GNS-530/W or GNS-430/W must verify the aircraft is on the
manufacturer’s Approved Model List.
Note:
It is imperative that only one source of terrain cautions and warnings be enabled on the
airplane so as to avoid the potential for conflicting information to be presented to the pilot. If
an HTAWS system is installed but the AeroNav's internal TA and FLTA functions are to be used
for terrain avoidance, the HTAWS system
must
be fully disabled. If an HTAWS system is to be
used the caution and warning indications generated by the HTAWS system can be displayed on
a third party annunciator and the AeroNav's TA and FLTA displays and audio must be inhibited.
See section 7.5.4.
Note:
If the unit being replaced was an HTAWS-enabled device used for 91/135 HTAWS compliance,
the AeroNav XXX cannot be installed without a separately installed HTAWS unit.
BendixKing TA/FLTA is not an approved TSO-C194 HTAWS unit.
Содержание 700-00179-700
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