Originally Posted by
BluSdUp
Another thing: Who has mapshift these days?
From a discussion on another thread about the Air Canada Halifax crash:
Originally Posted by
peekay4
In reality, a large number of A320s (and even A330s/A340s) do not have even vanilla GPS installed as part of the navigation system! No GPS units. No MMR. These A320s depend solely on radio updating (VOR/DME) or manual IRU alignment before takeoff.
(I believe the Air Canada aircraft involved in this accident [YHZ - Airbubba] was not equipped with GPS.)
Also, some of these aircraft have dual FMS which are not GPS compatible. Total upgrade price == very costly.
I'm wondering if the AC A320 at SFO was in this legacy no-GPS configuration.
Still, even if the setup is FMS with no raw data displayed, at the end of the day this is supposed to be a visual approach. Does AC turn off the flight directors on the visual segment of this approach?