Airplane Flight Manual Supplement

AFMS, GARMIN G500/G600 SYSTEM 190-00601-01 Rev. K
FAA APPROVED Page 28 of 51
3.1.3 Air Data Computer (ADC) Failure
Air Data Computer failure is indicated by a red X and yellow text over the
airspeed, altimeter, vertical speed, TAS and OAT displays. Some derived
functions, such as true airspeed and wind calculations will also be lost. If valid
GPS data is available, the PFD will automatically revert to display GPS
calculated altitude relative to mean sea level. This GPS altitude is displayed
above the altitude tape.
1. Use Standby Airspeed Indicator and Altimeter
2. Seek VFR conditions or land as soon as practical
If ADC 1 has failed and PFD 1 AIR DATA switch is installed:
3. PFD 1 AIR DATA switch – Select ADC 2
NOTE
ALT NO COMP and IAS NO COMP alerts will be present.
3.1.4 Loss of Electrical Power
In the event of a total loss of electrical power, the G500/G600 system will cease
to operate and the pilot must utilize the standby instruments to fly the aircraft.
3.1.5 Loss of Electrical Power to 3-inch Electric Standby Attitude
Indicator (flashing amber STBY PWR light) (MidContinent 4300 Series)
When a 3-inch electric standby attitude indicator is installed, loss of primary
electrical power to the attitude indicator is annunciated by a flashing amber light
on the indicator. The attitude indicator is operating on backup battery power,
and pilot action is required for the gyro to continue operating.
1. Press STBY PWR button on the indicator one time.
2. Verify that the flashing amber light extinguishes.
3. Verify that the red gyro warning flag is not displayed.
4. Seek visual meteorological conditions (VMC) or land as soon as
practical (operation of standby attitude indicator is limited by battery
life).
WARNING
Do not press the STBY PWR button a second time after the
flashing amber light extinguishes. This will turn off the
backup battery and the red gyro warning flag will be
displayed. If the STBY PWR button is inadvertently pressed
and the red gyro warning flag is displayed, press the STBY
PWR button again to return to battery power operation (red
gyro warning flag should not be displayed).