Gps Failure; Attitude Aligning; Attitude Aligning / Keep Wings Level; Loss Of Electrical Power To The G5 Display - Piper CHEROKEE CRUISER PA-28-140 Information Manual

GPS Failure

If GPS navigation receivers and/or navigation information are not available or invalid, the G5 will display Dead
Reckoning mode (DR) or Loss of Integrity mode (LOI) on the HSI in the lower left corner.
If Alternate Navigation Sources (ILS, LOC, VOR) Are Available:
1. Use alternate navigation source.
If No Alternate Navigation Sources Are Available:
If DR is Displayed on HSI:
1. Use the amber CDI for course information.
2. Fly toward known visual conditions.
If LOI is Displayed on HSI:
1. Fly toward known visual conditions.
For aircraft equipped with a GAD 29B interfaced to an autopilot, GPSS will be displayed in amber text when GPSS
emulation has been selected from the G5 menu.
1. Deselect GPSS from the G5 menu and select a different autopilot mode.

Attitude Aligning

During system initialization, the G5 displays the message 'ALIGNING' over the attitude indicator.
typically display valid attitude within the first minute of power-up. The G5 can also align itself while taxiing and
during level flight.
If the "ALIGNING" indication occurs during flight and attitude remains displayed, the attitude display is acceptable
for use for flight in instrument conditions. The message will clear when the attitude solution is within the systems
internal accuracy tolerances. It is recommended to maintain wings level to reduce the time for the system to
align.

Attitude Aligning / Keep Wings Level

If the "ALIGNING KEEP WINGS LEVEL" indication occurs during flight, the G5 has detected an invalid attitude
solution and will not display any attitude information.
1. Use standby instruments to maintain wings level flight. The system will display attitude when internal
accuracy tolerances have been met.
2. If attitude does not return, seek VFR conditions or land as soon as practical.

Loss of Electrical Power to the G5 Display

In the event of a loss of aircraft electrical power to the G5 attitude display, the indicator will continue to function on
its internal battery. If an internal battery is installed on the optional G5 HSI, the indicator will continue to function
on the internal battery if aircraft power is lost. Internal battery endurance is indicated on the G5 display in hours
and minutes. The charging symbol will be removed and the internal battery will not be charged.
In the event the G5 attitude display powers down, the optional G5 HSI will automatically revert to displaying
attitude information. It will not revert back to the DG/HSI format if the G5 attitude unit regains power. The
DG/HSI presentation may be selected from the G5 menu on the G5 DG/HSI unit after reversion to the attitude
display.
AFMS, Garmin G5 AML STC
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The G5 will
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