You’re right it shouldn’t be that high at 39000ft, so thats not correctly simulated. It should hover just under the amber range, around 8,3-8,4 PSI.
The auto system will fail if diff pressure goes above 8,75PSI. The theoretic max diff pressure is 9,1PSI however safety pressure relief valves open at 8,95PSI.
I presume PMDG hasn’t modeled failure of the pressure relief valve. I was an observer/passenger on a KC-135R once back in the 80’s when the cabin pressure relief valve failed open - everyone’s ears popped, and a minute later the loadmaster started rounding everyone back to the sets and handing out emergency breathing apparatus while the plane made a rapid descent.
Lucky you (joking). I fly maybe 30 flights a year as a passenger and never experienced anything, not even a go-around 
The 80’s were a different time, man. And that was a military flight as well (Air National Guard), which meant none of the usual commercial carrier rules and procedures applied other than basic stuff like “descend to 10,000’ so people can breathe,” lol.
Thanks Snail!!
Gosh I was so hoping you’d chime in on this subject, and you did 
Hmmm, might skip 8 and get 9 after reading reviews. Do not want too much money invested in planes, as I think need new PC for this game and XP-12, but that is next year, I think.
Hey, Big Ern made captain. Fun flight log video of his final trip as an FO riding in the left seat with a check airman for his upgrade. Nice comments throughout about getting used to the HUD, gusty landings with flaps 40 at MDW, etc. Good stuff as usual, and fun to see his big smile at the end.
You may be able to simulate it yourself. Just place the pressurization mode selector in manual and close the outflow valve with the switch. Watch the cabin descend and the pressure differential increase. I haven’t tested it myself in MSFS (or in the real airplane because I’d like to keep my job).
Always here for the tech stuff. It’s a good incentive to read through my manuals. Don’t you think for a second that I have all these numbers in my head.
I noticed that too in my last flight with the -600.
However the rocket ship this thing is, I was still doing ~1300ft/min close to FL370. With the cabin only climbing at 500ft/min couldnt that exceed the max pressure dif?
The most beautyful and exotic looking airport I have ever seen!
In this new 737-800 video that has been released.
I am not saying which airport this is to make it more exciting 
but tip for the impatient ones, at 13:15 the simmer is starting to program the FMC for you to find out:
Mehhh I’m gonna hold out for that EFB (if it’s so easy as he keeps saying, why didn’t they include it in any of the updates for the 700/600?).
Probably gonna hold out for the 900 too. I already find myself hardly flying the 700 now as I just enjoy the A320 more, catching up with it after half a lifetime. Never really flown them back in FSX (and you were right @SuperSixBravo haha, they’re lovely to fly).
How is he doing this without a CTD lol. Since Sunday I cant fly anything without a CTD
Try switching servers - not sure what region you’re in but some of the Community mods here have been correlating reports and evidently there are a lot more issues in Europe than other places. I’ve been simming extensively since the first reports but haven’t had a problem on my default US East server. Haven’t been online yet today though.
How do I change servers?
Thanks by the way
Today I flew LIRF - LIEE in PMDG 737-600 and EIDW - LFBO in Fenix A320 without any issues 
I’m in Europe.
From the main sim page, at upper-right where it shows your XBox/Windows Live gamertag name, click on it - it should show what server you’re logged into and let you select another one. I haven’t had to try it in a while - hopefully they haven’t changed things lately.
Nice sadly I am following this thread, hoping for a fix.
I have not tried today, and probably won’t it’s too late and work tomorrow, but will try tomorrow.
Ok folks, let’s get this topic back on track.
Please discuss sim CTD issues in the proper category!
Just wanted to note that you’ll get a pressure differential issue rather rapidly… if you forget to turn on the packs.
Twice.
This is why I’m not allowed to fly real aircraft… 
