Installation Instructions

GTN 6XX/7XX AML STC Installation Manual 190-01007-A3
Page 7-2 Rev. 4
7.2.5 Rotorcraft Installation
The installation and operational approval for use of a GTN and GMA 35 in rotorcraft is not authorized by
the GTN AML STC SA02019SE-D; however, instructions and data provided in this manual may be
applicable to the alteration. Installation of GTN and GMA 35 equipment in rotorcraft requires separate
approval from the cognizant aviation authority.
The GTN unit TAWS functionality is not approved for use in rotorcraft.
7.2.6 Aircraft Radio Station License
An aircraft radio station license is not required when operating the GTN in U.S. airspace, but may be
required when operating internationally.
7.2.7 GPS/WAAS Antenna Limitations
The GTN GPS/SBAS receivers are limited to using one of the GPS/WAAS antennas listed in Table 1-10.
For multiple GPS installations in non-metallic aircraft, the GPS antennas must not be mounted in a
straight line from the front to the rear of the fuselage, to prevent a single lightning strike causing damage
to all GPS systems.