Pilot's Guide

190-00709-05 Rev. B
Garmin G1000 Pilot’s Guide for the Socata TBM 850/900
87
FLIGHT INSTRUMENTS
A ground line with diagonal stripes below it (Figure 2-48) appears on the Altimeter to show the aircraft’s
height above the ground. If the radar altimeter data becomes invalid, the message “RA FAIL” is displayed in
yellow in place of the current radar height (Figure 2-49). The Radar Altimeter test is done on the MFD, and the
‘RA TEST’ annunciation appears on the PFD directly above the Radar Altimeter box (Figure 2-50).
Figure 2-48 Altimeter Displaying the Ground Line (RAD ALT)
Ground
Line
Radar Altimeter
Minimums Box
Radar Altimeter
Figure 2-49 Radar Altimeter Invalid Data
Testing the Radar Altimeter (KRA 405B only):
1) Turn the FMS Knob to select the AUX - System Status Page on the MFD.
2) Select the RA TEST Softkey.
Or:
1) Press the MENU Key.
2) Turn the FMS Knob to highlight ‘Enable RA Test Mode’ and press the ENT Key.
The ‘RA TEST’ annunciation is displayed above the RA box (Figure 2-50). To cancel the test, select the RA TEST
Softkey again, or turn the FMS Knob to exit the AUX - System Status Page.
Figure 2-50 Radar Altimeter Test Display (KRA 405B)