Hi,

FL360, all packs on, the cruise level set on the tape, but the pressure gauge shows 0 ft cabin altitude and probably over the gauge max scale delta p. Also the cabin temperature is quite low, below 20 F.

 

Oh yes, my ears also hurt. 

10 hours ago, mark75 said:

Hi,

FL360, all packs on, the cruise level set on the tape, but the pressure gauge shows 0 ft cabin altitude and probably over the gauge max scale delta p. Also the cabin temperature is quite low, below 20 F.

 

What happens to cabin temp if you also latch these two?

14 minutes ago, Airspeed said:

What happens to cabin temp if you also latch these two?

Yeah, that could be my user error. It doesn't explain the pressurization though.

22 minutes ago, mark75 said:

Yeah, that could be my user error. It doesn't explain the pressurization though.

No that is true

Edited April 23Apr 23 by Airspeed

Hi, there are still some in-progress fixes regarding the pressurization system, thank you.

I implore the dev responsible for the air conditioning ATA to reference the system schematics for the bleed/packs, primarily noting where the temp bulbs are located within the duct work respective to where target temperature readings are taken from. Temperature ranges for pack inlet and compressor discharge are still no where close to publicly available reference material. The last 4 updates have included some form of air conditioning bug fixes yet we're skipping the core problems in search of solutions for tertiary faults related to these two key issues. These are mere band aid fixes for a deeply broken system and continually avoiding the core issue is going to further the spaghetti code.

Are we really to believe that the bleed air entering the packs is only 60C? IF that were the case, how can the hot air manifold be HIGHER than what it's being supplied without being compressed?

Hi, thank you for these references, I'll pass it along to the team, thank you.