Garmin International Inc 01443 Manual De Usuario

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GTX 3000 Installation Manual
Revision A
190-00926-01
2.5 Installation Approval Considerations for Pressurized Aircraft
Antenna and cable installations on pressurized cabin aircraft require FAA approved installation design and 
engineering substantiation data whenever such installations incorporate alteration (penetration) of the 
cabin pressure vessel by connector holes and/or mounting arrangements.  Use of existing bulkhead 
connectors previously approved by other means is permissible without additional approval.
For needed engineering support pertaining to the design and approval of such pressurized aircraft antenna 
installations, it is recommended that the installer proceed according to any of the following listed options:
1. Obtain approved antenna installation design data from the aircraft manufacturer.
2. Obtain an FAA approved Supplemental Type Certificate (STC) pertaining to and valid for 
the subject antenna installation.
3. Contact the FAA Aircraft Certification Office in the appropriate Region and request 
identification of FAA Designated Engineering Representatives (DERs) who are 
authorized to prepare and approve the required antenna installation engineering data.
4. Obtain FAA Advisory Circular AC-183C and select (and contact) a DER from the roster 
of individuals identified thereunder.
5. Contact an aviation industry organization such as the Aircraft Electronics Association and 
request their assistance.
2.6 Cooling Air
Cooling air is generally not required.  However, if the unit is located in a confined space or near a source of 
heat, cooling air is recommended for maximizing the life of the GTX 3000.  A 5/8 inch air fitting is 
provided on the rear of the backplate for the purpose of admitting cooling air.  If a form of forced air 
cooling is installed, make certain that rainwater or condensation cannot enter and be sprayed on the 
equipment. 
2.7 GTX 3000 Mounting Requirements
Refer to the G1000 System Installation manual, Garmin part number 190-00303-00, for information on 
cooling requirements.  For remote mounted units, forced air cooling is not required.  However, the 
application of forced air cooling is recommended to provide beneficial cooling if the unit is located in a 
confined space or near a source of heat.
A 5/8 inch air fitting is provided on the rear of the backplate for the purpose of admitting cooling air under 
such conditions.  If a form of forced air cooling is installed, make certain that rainwater or condensation 
cannot enter and be sprayed on the equipment. 
DRAFT