Avidyne IFD540 Manual de instalación descargar pdf (Pagina 199)

6-21 General

Verify that touch screen control is not turned off on the

User Options – SETUP tab of the AUX page;

Consider cycling power on the affected IFD via the top

left power knob;

After the flight, notify an Avidyne Service Center or

Avidyne Customer Support to coordinate for a repair

action.

LOSS OF GPS (DEAD RECKONING)

Failure Indication:

A “Dead Reckoning” yellow CAS Caution message is issued and

the map will display “Dead Reckoning” along the top left edge of

the map.

Functionality Lost:

Following loss of GPS navigation, Dead Reckoning (DR) provides

limited navigation capability for up to 5 minutes. The IFD will use

speed and last known position at the time of GPS loss along with

any heading data it may have to provide an estimate of aircraft

position. At the end of that 5 minute period, if GPS lock has not

been reacquired, the system will transition to No GPS and

provide the appropriate CAS message and remove the ownship

symbol from the moving map.

All GPS-based navigation should remain unaffected during DR

mode, albeit with less accuracy and LPV approaches will be

terminated due to loss of integrity so higher minimums for the less

accurate GPS-based approaches will need to be used.

Recommended Pilot Action:

Use other means of navigation if possible;

Plan on higher-minimum GPS RNAV approaches if in the

terminal area;

After the flight, notify an Avidyne Service Center or

Avidyne Customer Support to coordinate for a repair

action.

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Avidyne IFD540 Manual de instalación Pagina 199