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Cabin Altitude Alert

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Hi Folks. When I'm flying my iFly 737-700 I get an alert on the annunciator saying 'Cabin Altitude', in red. Can someone please tell me what I have to do to put this right? what I have to check, or un-check, or set.

Thanks

John

Engine bleed(s) on after engine start, cabin press controller set.

Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

Same as Bob said, but also make sure you turn the packs on after engine start also.

  • Author

OK Guys thanks very much.

John

That is your punishment when you don´t use Checklist. ^_^

 

Here you have a Checklist from TUIfly Company.

 

AFTER TAKEOFF

 

Engine Bleeds...................On

Packs................................Auto

Landing Gear Lever...........Up&Off

Flaps...............................Up no lights

Altimeters..........................STD Level_

Live your dream and not dream your life!

Does this mean that engine bleeds should be OFF at takeoff?

Jason

FAA CPL SEL MEL IR CFI-I MEI AGI

Does this mean that engine bleeds should be OFF at takeoff?

 

Depends on the aircraft, I am not a 737 guru but the basic theory behind it is that the bleeds can steal power away from the engine which in case of a failure could be the difference between a sucessful emergency or a failure.

Tom

"I just wanna tell you both: good luck. We're all counting on you."
 

Does this mean that engine bleeds should be OFF at takeoff?

 

A bleeds-off takeoff is not standard, but it is an option when performance-limited...there are separate charts in the AOM for it.

Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

Hi Folks. When I'm flying my iFly 737-700 I get an alert on the annunciator saying 'Cabin Altitude', in red. Can someone please tell me what I have to do to put this right? what I have to check, or un-check, or set.

Thanks

John

 

What you should do is to don your oxygen mask first then sort out the mistake in the checklist.

3VlzBGn.jpg?1

Super VC10 into LOWI with PF3 at a cinema near you

https://www.youtube.com/watch?v=298UDyNmgUA

 

A Bleed-Off Takeoff only perfomed when more power is required like very short runways and you need at -10 Degress Celsiuis both Anti Ice.

Live your dream and not dream your life!

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