Cockpit Reference Guide

Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
190-00384-11 Rev. A
SECTION 12 – ABNORMAL
OPERATION
12-2
12.2 ABNORMAL COM OPERATION
When a COM tuning failure is detected by the system,
the emergency frequency (121.500 MHz) is automatically
loaded into the active frequency field of the COM radio
for which the tuning failure was detected. In the event of
a dual display failure, the emergency frequency (121.500
MHz) automatically becomes the active frequency to the
pilot through the pilot headset.
12.3 UNUSUAL ATTITUDES
The PFD ‘declutters’ when the aircraft enters an unusual
attitude. Only the primary functions are displayed in
these situations.
The following information is removed from the PFD
(and corresponding softkeys are disabled) when the air-
craft experiences unusual attitudes:
• TrafcAnnunciations
• AFCSAnnunciations
• FlightDirector
Command Bars
• InsetMap
• Temperatures
• DMEInformation
Window
• WindData
• SelectedHeadingBox
• SelectedCourseBox
• TransponderStatus
Box
• SystemTime
• PFDSetupMenu
• Windowsdisplayedin
the lower right corner
of the PFD:
– Timer/References
– Nearest Airports
– Flight Plan
– Messages
– Procedures
– DME Tuning
• BarometricMinimum
Descent Altitude Box
• Glideslope,Glidepath,
and Vertical Deviation
Indicators
• AltimeterBarometric
Setting
• SelectedAltitude
• VNVTargetAltitude
Red extreme pitch warning chevrons pointing toward
the horizon are displayed starting at 50 degrees above and
30 degrees below the horizon line.
Figure 12-2 Extreme Pitch Indication
12.4 STORMSCOPE OPERATION WITH
LOSS OF HEADING INPUT
If heading is lost, strikes and/or cells must be cleared
manually after the execution of each turn. This is to
ensure that the strike and/or cell positions are depicted
accurately in relation to the nose of the aircraft.
12.5 HAZARD DISPLAYS WITH LOSS OF
GPS POSITION
If GPS position is lost, or becomes invalid, selected
hazards being displayed on the Navigation Map Page are
removed until GPS position is again established. The
icons in the lower right of the screen, indicating the
selected functions for display, will show an ‘X’, as shown
in Figure 12-3.
Figure 12-3 Loss of Hazard Functions
with Loss of GPS Position