Cabin Altitude Warning - [ 737 PMDG - Cabin Altitude and Rapid Depressurization ]

[@sejaldalal9330]

Lovely video.... can't wait for the next one! Thank you Captain

[@thisisthecaptain]

Glad you enjoyed it!

[@siddharthrane9782]

This was a lovely video it helped me understand the basics of the system 😊

[@thisisthecaptain]

Glad you enjoyed it!

[@ritarane3549]

nice video keep posting

[@thisisthecaptain]

Thank you, I will

[@thisisthecaptain]

We will

[@Izmael1310]

What is the correct proccedure to shut it up the alarm? I took off with the packs off and valve to open. It started to screaming at me although I corrected the switches and descended to FL100.

[@thisisthecaptain]

Press the ALT Horn CUTOUT switch when you get the cabin altitude alert . It's next to the air conditioning panel. Watch the video on emergency descent at time 03:05. You will see it in action

[@Izmael1310]

@@thisisthecaptain I dont want to bother you, but this scenario is basically if the automatic systems fail. My system did not fail and I made the mistake with the packs off and valve open - they should be on auto. So it differs. You deliberately depressurized the aircraft while in my case the aircraft was never pressurized. I stopped my climb shortly after FL100 at FL110 with the alarm going on. I noticed my mistake and I switched the packs and valve to open, but it did not do anything to the pressurization. The cabin alt did not go down. Then I switched it to manual and flicked the switch/lever to the close position and aircraft pressurized itself. It was trial and error from my side, but if I do the same mistake again in the future I would like to respond in the correct way. So could you describe the scenario where the packs are off and isol valve open? How to pressurize aircraft in FL110 quickly so I can continue my climb safely? Thanks a lot.

[@thisisthecaptain]

Could you describe a situation where packs are off and isolation open? So ideal scenario in airlines . There is a preflight scan for the Captain and first officer. where each pilot checks all the switch positions to make sure the take off is safe for the pilots as well as the passanger. There should be No take off done with pack switches in OFF position, unless it's a MEL and you are flying below 10000ft. I know some cases where pilots forgot the check the pack switches and masks were deployed. Pax had minor ear injuries and pilots were derostered for enquiry with no pay for 6-12months. Now ideally you should not take off with packs off, if you do a proper preflight you should be good. But being a flight simulator , and you want to see different scenarios. You can try level off at 11000ft, put the packs onl and isolation switches auto. you will have to wait a long time till the airplane sets the pressurization and then with the help of manual mode you will have to open close the outflow valve till you meet the schedule which is on the black tape which shows pressure (CABIN ALTITUDE) against airplane altitude . So the steps you took were correct. That's the only way.