Gps Failure Test; Figure 9-5, Aux-Gps Status Page - Garmin G1000 Nxi System Maintenance Manual

Select the AUX - GPS Status page on the MFD. After the G1000 system has been on for a
minimum of two minutes, toggle between GPS 1 and GPS 2 using the two softkeys on the
bottom of the display. Verify that both receivers show a 3D GPS Solution in the GPS Status
field.

GPS Failure Test

Before starting this test, create a simple Direct-To flight plan to an airport or other waypoint that
is greater than 31 NM from the present aircraft position. Verify that the phase of flight displayed
on the GPS CDI is ENR.
Step
Single GPS Failure Condition:
1. Ensure GPS satellites are acquired.
2. Place a shroud over the GPS antenna for GIA 1
to prevent signal reception. Verify loss of signal
on MFD Aux – GPS Status page.
3. Check for desired results.
4. Remove shroud from the GIA 1 GPS antenna
and allow system to re-acquire satellites.
5. Place a shroud over the GPS antenna for GIA 2
to prevent signal reception. Verify loss of signal
on MFD Aux – GPS Status page.
6. Check for desired results.
7.
Remove shroud from the GIA 2 GPS antenna.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1

Figure 9-5, AUX-GPS Status Page

Desired Result
For each of the single GPS failure conditions, the following
shall remain valid on the PFD throughout the procedure:
•
•
•
For a GIA1 GPS Failure, an amber BOTH ON GPS2 is
displayed on PFD 1 and PFD 2.
For a GIA2 GPS Failure, an amber BOTH ON GPS1 is
displayed on PFD 1 and PFD 2.
Attitude and Heading from AHRS.
Airspeed, Altitude, Vertical Speed, and OAT from Air
Data Computer.
GPS Course Deviation Indicator
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