Crazy question here, but...

My stepdad-in-law and mother in law came up for my son's 7th birthday. The day they got here, he was admitted to the hospital with chest pains and had it narrowed down to congestive heart failure. He' wanting to go home to Orlando, and Southwest has a nonstop on what is usually a 737-300, filed at 310 (at least for the last few days according to FlightAware).

Crazy question here, but I need someone to tell me what cabin altitude usually is 310 in a 737-300 so I can report this back to his cardiologist and see if they'll let him fly home. Otherwise it's a 12 hour rental car for the same money. Feel free to PM if you feel this is something that doesn't need to be out in public.

Thanks in advance!

 

Less than 8 thousand. Keep in mind the 737-300 can fly up to 370. Even then it should be 8000' or less. I don't fly the classic anymore but if more detail is needed, I'm sure someone will come along.


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Here's a picture of the AC panel from a 737-200. I've never flown a 300, but its panel is probably the same. Looking at the chart right below the controls, you should have a cabin altitude of 6200' while cruising at 31000'.

HTH

 

Thanks guys!

 

Remember, they'll provide supplemental oxygen that should keep him well supplied regardless of cabin altitude.

 

Provide?

No. But he can bring his own o2 generator.

 

Maximum cabin altitude is 8000 feet. Cabin altitude between FL260 and FL320 is listed as 6000 feet on the placard.

 

Oops
Southwest is not equipped to transport or provide medical oxygen either in the passenger cabin or as cargo or baggage. Any Customer who requires a constant supply of compressed or liquid medical oxygen cannot travel on Southwest Airlines. If there is a question as to a Customer’s ability to travel the duration of a flight without the use of medical oxygen, we may request documentation from a licensed physician to verify that the Customer can complete the flight safely and without the use of medical oxygen.

Liquid oxygen cannot be carried onboard our aircraft. If a liquid oxygen unit is empty (and contains a gauge or color indicator verifying the unit is empty), then the unit can be transported, as long as the valve remains open.

Portable Oxygen Concentrators

While Portable Oxygen Concentrator (POC) devices may be brought onboard our flights, in accordance with Special Federal Aviation Regulation (SFAR) No. 106, 14 CFR Part 121, only the AirSep FreeStyle, AirSep LifeStyle, Delphi RS-00400, DeVilbiss Healthcare iGo, Inogen One, Inogen One G2, International Biophysics LifeChoice, Invacare XPO2 (XPO100), Oxlife Independence Oxygen Concentrator, Respironics EverGo, and SeQual Technology Eclipse POC models are approved for use during flight.

 

Yeah. You can't just board a plane and tell the crew you require oxygen. You need to get in touch with customer service and arrange all that. They will provide you with a generator after you clear security. But you need to take care of all these things when you buy the ticket. My grandfather went through this a few years back on CAL. It's only a problem if you don't plan ahead and just expect everyone to part the way.


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And an aircraft may change altitude up to it's max altitude for several reasons, even if it's intended cruise altitude was lower. Do not count on 310 being the final altitude. On some flights, it's "all over the sky" as the pilot tries to find a level without turbulence or as ATC directs.