What happens if you open a plane door while the cabin is pressurized?

If the plane is somehow kept pressurized, the cabin pressure is usually equivalent of 6000–8000 ft, which is lower pressure than the outside at sea level. Which means as soon as you unlock the door, it will swing inwards with a lot of force, as air from outside rushes in to re-pressurize the cabin.



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Pilot and Vietnam War veteran Pete Jordan knows exactly what happens when a pressurized cabin decompresses 30,000 feet in the air at 300 to 600 mph: There's no oxygen, and it gets damn cold in a hurry. An open door would release the cabin's ball of pressure, causing an immediate suction explosion.

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Opening an aircraft door is impossible while the plane is at cruising altitude or above 10,000 feet due to air pressure. However, as the plane gets lower, experts say it is possible for a door to open as the pressure outside equalizes with the pressure inside the plane.

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No emergency door can be accidentally opened by passengers. They are all automatically locked from the cockpit before you ever board, and in any case in flight they can't be opened due to the pressure differential inside and outside the plane.

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The inner pane basically safeguards the load from the passengers during flight. When both the outer and middle panes break, then all the pressurization in the airplane would escape leading to decompression in the passenger cabin. A plane is pressurized for passengers' comfort as it climbs to a higher altitude.

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Most aircraft cabins are pressurized to an altitude of 8,000 feet, called cabin altitude. Aircraft pilots have access to the mode controls of a cabin pressure control system and – if needed – can command the cabin to depressurize.

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§ 25.841 Pressurized cabins. (a) Except as provided in paragraph (c) of this section, pressurized cabins and compartments to be occupied must be equipped to provide a cabin pressure altitude of not more than 8,000 feet under normal operating conditions.

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after the flight. Even if you are flying a pressurized aircraft, altitude DCS can occur as a result of sudden loss of cabin pressure (inflight rapid decompression).

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Families of victims and survivors may bring a lawsuit against the airline or aircraft. In some cases, it may be appropriate to sue a parts manufacturer. The federal government provides support to the families of those injured in airplane crashes.

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On many aircraft types, pilots can open the side windows in the cockpit. The main reason for this is not for ventilation or vision; it is related to aircraft safety law.

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The dimming of cabin lights only happens when it is dusk, dawn or dark outside the aircraft. This is a safety measure, and is to ensure your eyes are adjusted to the gloom enough to see the floor lights leading you to safety along the aisle in the event of a crash or emergency evacuation.

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“A bullet hole in a cabin wall would have no perceived effect on cabin pressure…. A bullet hole is far smaller than the opening of the outflow valve [through which cabin air escapes during routine depressurization].

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How do flight crew normally open a cockpit door? Since the incidents in 911, pilots and flight attendants no longer have keys to open the cockpit door, which remains locked during flight. Access is granted via a keypad found outside the cockpit door.

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