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Old 25th Dec 2015, 10:48
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wolkenjaeger
 
Join Date: May 2009
Location: Switzerland
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B777 - GPS altitude

I am currently doing converstion on the T7 (I am an Airbus kid). Now, during a recent session in the FFS for the Airspeed Unreliable procedure, I was looking for the GPS altitude... until my instructor told me that I will fail to find such.

Now the question: I understand it is not available in the FMC... however, in an other French built airliner, I was able to get it on the FMGC AND via the ACMS and the correct label (GPSALT AFAIK).

Question A: Is there something similar in the T7 or is it simply not possible?

While thinking about it, I thought maybe I could use the cabin altitude indication as a fallback when below 10'000ft (manually open up both outflow valves and maybe turn off both packs to get an approximate pressure indication). This would give me at least an emergency altitude indication if really needed.

Last edited by wolkenjaeger; 25th Dec 2015 at 10:48. Reason: Typo
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