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89000046-014
KSN 780/8XX/900 AeroNav AML STC Installation Manual for Helicopters
Rev 0
Page-4-1
© Honeywell International Inc. Do not copy without express permission of Honeywell.
4. Electrical Installation
The electrical wiring should be installed in accordance with FAA AC 43.13-1B Chapter 11, sections 8
through 13 and in accordance with this manual. The following section will describe requirements for
the electrical wiring when installing the AeroNav XXX.
4.1 Wire Type
MIL-C-27500 and MIL-W-22759 wire is recommended. Select the appropriate wire type and size for
the aircraft type and installation location per FAA AC 43.13-1B.
4.2 Wire and Connector Identification
Wires and connectors should be marked per FAA AC 43.13-1B.
4.3 Wire Routing
All wires and wire bundles must be routed and secured in such a way to eliminate risk of mechanical
damage and minimize exposure to heat and fluids. Also, consider the following when installing wire
harnesses in the aircraft:
•
In dual GPS installations, route wire harnesses separately to prevent dual GPS failures
•
Do not route harness near high power electrical lines
•
Equipment should be installed with separation between redundant systems to prevent loss
of navigation due to a single event
4.4 Shield Grounds
All shield grounds should be grounded using the ground block on the AeroNav XXX tray backplate.
Shield grounds should be as short as possible (shorter than 3.0”, if possible)
Shield grounds on non-BendixKing equipment should be grounded per the manufacturer’s installation
instructions. In the absence of any installation data, the shield wires can be connected to the
connecter backshell or aircraft ground.
4.5 Wire Harness Overbraid
Copper overbraid is not required on the AeroNav XXX wire harness. However, in the following cases,
copper overbraid is required.
4.5.1 Existing Equipment
If interfacing to any existing avionics equipment with copper overbraid over the wire harness, it must
be installed on all new wiring to that existing piece of equipment. The copper overbraid must meet
the specification in Section 4.5.3.
4.5.2 Severe Lightning Transient Environment
Aircraft Installations where the aircraft actual transients level is higher than the AeroNav XXX
equipment transient design level must install copper overbraid on the entire AeroNav XXX wire
harness. This does not include the antenna coaxial cables. The copper overbraid must be installed per
Section 4.5.3.
Содержание 700-00179-700
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