Cabin altitude warning

[Gasherbrum]

I'm getting a cabin altitude warning since last 2 flights and I've no Idea why

Packs are on.
L R Eng bleeds are on.
Cabin altitude control is on auto.
Auto rate at triangle.
Landing alt is set for arrival.
Bleed air duct pressure is 30 PSI.


Last flight I ignored the warning and flew for around 2 hours and 30 mins at 36000ft and noting happened. No blackouts nothings everything was perfect, was only getting a red cabin altitude warning.
Right now I'm cruising at FL 400 and I have cabin altitude warning again in red.

It's FF 757

[squashplayer1]

Little late I know, but I have the same problem. At some random point into the flight, I get a cabin altitude warning although everything was working for 3 hours. Very strange, seems to be a bug.

[Maki Nishikino]

Originally posted by squashplayer1:

Little late I know, but I have the same problem. At some random point into the flight, I get a cabin altitude warning although everything was working for 3 hours. Very strange, seems to be a bug.

Screenshot of the pressurization panel please.

[squashplayer1]

Didn't make one, but the config was:

Packs both on
Isolation valve on
Engine bleed both on

So as I had, it has been working for 3 hours and in the 4th hour suddenly the Cabin Alt warning came up.

[Maki Nishikino]

Originally posted by squashplayer1:

Didn't make one, but the config was:

Packs both on
Isolation valve on
Engine bleed both on

So as I had, it has been working for 3 hours and in the 4th hour suddenly the Cabin Alt warning came up.

I just did a flight in the FF 757, I couldn't replicate this issue. It's possible you had a depressurization (found under failures) which you then need to take a look at the QRH.

[squashplayer1]

Looks like depressurization, yes. Also, the RAT came out.
The only thing that comes to my mind is that I accidentally clicked one of the pressure switches during the flight and didn't notice it.

I will monitor this on my 5 hrs flight today

[Maki Nishikino]

Originally posted by squashplayer1:

Looks like depressurization, yes. Also, the RAT came out.
The only thing that comes to my mind is that I accidentally clicked one of the pressure switches during the flight and didn't notice it.

I will monitor this on my 5 hrs flight today

If I remember right the RAT pops out on it’s own only if you have both engines fail or you lose both of the AC power buses.

[isiahc1]

how do i make a flight plan file for the 757

[Maki Nishikino]

Originally posted by isiahc1:

how do i make a flight plan file for the 757

You mean import?

[squashplayer1]

Did another 757 flight yesterday and nothing unusual happened. Hm. Will keep track of this, maybe it was my fault.