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GWX 68 Weather Radar Installed in Beech Queen Air/King Air Series 005-C0171-00 Rev B
STC Master Data List Page 5
1) This STC supports interface with the MX20, but does not support the installation of the MX20.
See paragraph 3.2 Prerequisite.
3. GENERAL INSTALLATION REQUIREMENTS
3.1 General
The installation must be done in accordance with all applicable FARs. The installation shall conform to
the data listed in Section 2.1, Data Required for Installation with exception of special instructions as
defined in Section 4 Special Installation Instructions, which shall have precedence over the data listed in
Section 2.1.
3.2 Prerequisite
This GWX 68 STC supports interface with the MX20 multifunction display unit. It does not support
installation of the interfaced equipment. This STC requires previous or concurrent installation of the
MX20 multifunction display installed under STC SA02154AK or other approved installation.
3.3 Mechanical
Mechanical installation, wiring, cable bundling and routing, and connections to existing aircraft systems
must conform to those specific instructions or requirements found in the STC data. Those aspects of the
STC where specific installation instructions or requirements are not provided in the STC data, the
installer shall conform to the recommended practices and procedures found in AC 43.13-2A, Chapter 2,
Radio Installations, and Chapter 3, Antenna Installations; AC 43.13-1B, Chapter 11, Electrical Systems,
Section 3, 4 and 7.
3.4 Hardware
Hardware not supplied with the equipment, or otherwise specified in the appropriate installation manuals
or other STC data (ie screws, nuts, tie wrap…. etc) shall be from standard aircraft hardware as described
by AC 43.13-1B, Chapter 5, Aircraft Hardware.
3.5 Wiring
All wire used in the installation shall be of appropriate standard aircraft quality grade and size as
described in AC 43.13-1B, Chapter 11, Sections 5-20.
3.6 Circuit Protection
All GWX 68 modification circuits shall be protected in accordance with AC 43.13-1B, Chapter 11, Section
4, Circuit Protection Devices.
3.7 Electrical Load Analysis
An electrical load analysis shall be performed on each aircraft, as described in AC 43.13-1B, Chapter 11
Section 3. The document P/N 190-00286-01 GWX 68 Installation Manual provides specifications on the
GWX 68 power requirements.