Rotorcraft Installation; Aircraft Radio Station License - Garmin GPS 400W Installation Manual

7.3 Rotorcraft Installation

The installation and operational approval for use of a 400W Series unit in rotorcraft is not covered by
AML STC SA01933LA; however, instructions and data provided in this manual may be used to perform
the alteration and obtain other FAA approval.
The 400W Series unit TERRAIN functionality is not recommended for use in rotorcraft.

7.4 Aircraft Radio Station License

An aircraft radio station license is not required when operating in U.S. airspace, but may be required
when operating internationally.
400W Series Installation Manual Page 7-3
190-00356-02 Rev. G