Egpws

[tailwater]

With a dual FMGC reset, can the EGPWS still provide data on ND?

[plhought]

EGPWS installations have thier own GPS antenna and don't rely on aircraft-supplied nav info.

[ACMS]

Oooh mmmmm, not as simple as that I'd say ( with regards to AIRBUS anyway )


On the ground with "Map not available" you cannot select Terrain.......( at least I think so )

Dual FMC failure ( Dual latch ) in the Air you see "Map not available" until backup Nav is selected.

Try it in the Sim and see if you can display Terrain in Backup NAV.

[sonicbum]

Hi, yes you will. The position for the TAWS functions is independent of the FM. This architecture allows you to fly extraction procedures during RNP-AR approaches in case of major FM malfunctions.