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  2. Cabin pressurization - Wikipedia

    en.wikipedia.org/wiki/Cabin_pressurization

    The pressure differential varies between aircraft types, typical values are between 540 hPa (7.8 psi) and 650 hPa (9.4 psi). [35] At 39,000 ft (11,887 m), the cabin pressure would be automatically maintained at about 6,900 ft (2,100 m), (450 ft (140 m) lower than Mexico City), which is about 790 hPa (11.5 psi) of atmosphere pressure. [34]

  3. Uncontrolled decompression - Wikipedia

    en.wikipedia.org/wiki/Uncontrolled_decompression

    In 1996, the FAA adopted Amendment 25–87, which imposed additional high-altitude cabin-pressure specifications, for new designs of aircraft types. [25] For aircraft certified to operate above 25,000 feet (FL 250; 7,600 m), it "must be designed so that occupants will not be exposed to cabin pressure altitudes in excess of 15,000 feet (4,600 m ...

  4. Environmental control system - Wikipedia

    en.wikipedia.org/wiki/Environmental_control_system

    That means that the pressure is 10.9 pounds per square inch (75 kPa), which is the ambient pressure at 8,000 feet (2,400 m). Note that a lower cabin altitude is a higher pressure. The cabin pressure is controlled by a cabin pressure schedule, which associates each aircraft altitude with a cabin altitude.

  5. What happens when an airplane cabin suddenly depressurizes? - AOL

    www.aol.com/happens-airplane-cabin-suddenly...

    In the aftermath of the incident aboard an Alaska Airlines 737 Max 9, we look at what happens when an aircraft experiences a sudden loss of cabin pressure and the risks for those on board.

  6. Talk:Cabin pressurization - Wikipedia

    en.wikipedia.org/wiki/Talk:Cabin_pressurization

    The auto pressure controllers are programmed to keep the cabin altitude as low as possible, consistent with not exceeding the max allowed pressure differential for outside-to-inside, of approximately 8.6 PSI (various aircraft can vary a little, from that number, up or down).

  7. Cabin pressure issue on Delta flight causes bloody ears and ...

    www.aol.com/cabin-pressure-issue-delta-flight...

    A photo taken by passenger Jaci Purser after the Delta flight she was on returned to the airport due to a cabin pressure issue that caused bloody noses and other problems for passengers. - Jaci Purser

  8. Too hot to board: What’s the limit for sweltering airplane ...

    www.aol.com/news/too-hot-board-limit-sweltering...

    The first line of defense against the heat while the aircraft is sitting on the ground is trying to prevent the cabin from becoming excessively hot to begin with, according to Charles Horning, a ...

  9. Learjet 25 - Wikipedia

    en.wikipedia.org/wiki/Learjet_25

    A rate controller enables the crew to select the rate pressurization of the cabin within preset limits. The normal pressure relief valve will open at 8.9 psi differential pressure and the safety outflow valve will open at 9.2 psi differential pressure which is the maximum allowable differential pressure.