UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
2
3-1
Dec
8/08
CHAPTER 3
GNS 430W/530W GPS/WAAS NAVIGATOR
SECTION 1
SYSTEM DESCRIPTION
1-1. System
Description
A. The 430W/530W GPS/WAAS Navigator is a panel-mounted product that
contains a GPS/WAAS receiver for GPS approved primary navigation under TSO C146a,
and also VHF Com and VHF Nav radios in an integrated system unit with a moving map
and color display. The graphical display is used to depict traffic, weather, or terrain data.
B. Four configurations of the 430W installation are available. They are part
numbers 28-22037-5, 28-22037-7, 28-22037-9, and 28-22037-101. Four configurations of
the 530W installation are available. They are part numbers 28-22050-5, 28-22050-7, 28-
22050-103, and 28-22050-105. The dash numbers differentiate between installations with
or without VOR/LOC/GS activation and between installations that are upper or lower panel
mounted.
C. The 430W/530W provides optional output to a VOR/LOC/GS Indicator and to
either a VOX ICS or an audio panel.
D. Power to the 430W/530W unit is provided via the
COMM/NAV GPS
(28-22037-
5 or 28-22050-5) or the
COMM GPS
(28-22037-7 or 28-22050-7)
circuit breaker (CB40)
(5 Amp) and the
COMM TX
circuit breaker (CB41) (5 Amp) located on the left side of the
lower panel.
E. Refer to the 280FX Rotorcraft Flight Manual Supplement and the current
vendor operating manuals/instructions for operation of the 430W/530W.
1-2. Vendor
Publications
A. The 430W/530W is to be operated and maintained I/A/W the current vendor’s
instructions to ensure the continued airworthiness of the aircraft. The applicable vendor
manuals are listed in Table 3-1.
Table 3-1. Vendor Manuals
Component Publication
Vendor
GNS 430W
GNS 530W
1. 400W Series Pilot’s Guide and Reference
2. 400W Series Installation Manual
1. 500W Series Pilot’s Guide and Reference
2. 500W Series Installation Manual
Garmin International
1200 E. 151
st
Street
Olathe, KS 66062
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