Garmin STC for Bell 206/407 User Manual download pdf (Page 14)

190-01150-12 Rev. B RFMS Garmin G500H as installed in Bell 206A

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If GPS position information from the GPS WAAS navigator is not valid, the

own-ship icon on the MFD is removed and “NO GPS POSITION” text is

overlaid on the MFD moving map. The system will annunciate a loss of

integrity, “LOI” on the HSI. The LOI annunciation will be colored yellow and

the HSI needle will flag. The pilot should select an alternate navigation source

(via CDI key or 1-2 key). Pressing the CDI soft key will change the HSI

navigation source. If GPS navigation is subsequently restored, the MFD moving

map will display the own-ship icon, and the HSI navigation source may be

selected to GPS; at that time the “LOI” annunciation will be removed.

3.2.7 Synthetic Vision

The synthetic vision display of terrain uses several data sources (GPS, terrain

database, attitude information, etc.) in order to accurately display terrain. If any

of these data sources become unreliable or unavailable, the display of synthetic

terrain will automatically revert to the non-SVT PFD display of blue over brown.

Additionally, if during the course of normal operations there is any discrepancy

between actual terrain around the aircraft and terrain shown on the SVT display,

the display of synthetic vision should be manually turned off using the procedure

in section 2.1.3 of this flight manual supplement.

3.2.8 Display Dimming

When operating at high Outside Air Temperatures, typically in excess of 20°C,

the GDU 620 display may automatically dim to reduce equipment temperatures.

The display will return to full brightness when operating temperatures are

reduced.

3.2.9 Warnings, Cautions, and Advisory Annunciations

The following tables show the color and significance of the warning, caution,

and advisory messages which may appear on the G500H displays.

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 23 24

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Garmin STC for Bell 206/407 User Manual Page 14