I did start the flight on cold, but from a previous flight (landed into EIDW, stopped engines, opened doors, set up next flight, closed doors, and started from cold again). I think I followed the full standard procedure for configuration, start-up, taxiing and take off. I have done more than fifty flights with the A320NX, so while I am no pro I am no novice either.
One funny thing I realized is that there seems to be an external power wire hanging from the aircraft, and that the “external power available” is lit during flight. I am not sure if I turned off manually the external power after starting the APU, as it usually gets automatically disconnected when engines are started.
I managed to fly for a good while at FL390, without anything abnormal. Unfortunatelly, a CTD did not allow me to complete the flight.
Does anybody have an explanation for this?
Is this a bug, or I did something wrong? (both things are possible ;-))
Did you disconnect the ground power unit from the EFB? I forgot to check my doors when I took off for a second leg and got the same cabin pressure warning.
Thanks for your reply. I may have forgotten to disconnect the power, but not disconnecting the external power has happened some times to me in the past and I had never seen any adverse effect.
And I still do not understand why this would prevent the cabin from being pressurized.
Strange indeed…
LOL, yes that would be quite a simulation…
But yes, the funny thing is that the AC cord seems indeed connected to aircraft during flight (see my fourth picture above). I had not seen that before in any of my previous flights…
Yes , looking at that picture its quite bizarre .
Well i hope you get to the bottom of this issue , sorry i could not be more helpful , im sure some A320 Whizz will come on here and pinpoint the cause/issue
Wow, I did not know the windows in the A320NX can be opened…
I will check that next time, may be I messed up something and I did not realize it…
Thanks
Well this if flight sim Labs A320 , I didnt know that either but my mate has got it in P3D and we were discussing it and he looked up on the internet and found the pic
I realise it might be unnecessary, but you can check this out, page 2, bottom right … it should show you how to fix it when it happens, if it IS fixable :¬)
I would also go and check the fault system. I seem to remember when I set mine to realistic realism (lol) I had to turn off the faults/errors as I felt that there would be too many. I reasoned that most faults in the A320 are going to be failed instruments or valves or small things like losing one of the computers or SATNAV systems, whcih are mostly doubled up at a minimum, and fixed very quickly, none of which prevent flying.
Thanks . I assume PMDG reads all this stuff as well (as it applies to their aircraft) – to keep on top of an accurate simulation. All takes time , which is added to development expense, that has to be paid for somewhere.
Thank you, interesting reading stuff…
Nevertheless, the problem I found I think it was the opposite, i.e., too low pressure in cabin (as if some door was open).
It was probably a combination of a bug plus something I did wrong…
The switch goes up, and down. Up, makes the cabin pressure decrease (up in altitude), and down makes it increase (down in altitude). In your case, you would press the switch “DN” to let less atmosphere out.
I think, as there is nothing reported on the A32NX issues page, the external power available was probably what caused the CTD. The reason being that the logic behind the valves opening is that they open themselves on landing, so it might be related to that. If it was, I would expect the alarm to go off around ten minutes after starting to climb above FL100. The packs look to be on from your pic, so the pressure in and out difference would take a while to be noticeable.
