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Plug door information


Plug door with cross-section

A plug door is a door designed to seal itself by taking advantage of pressure difference on its two sides and is typically used on aircraft with cabin pressurization. The higher pressure on one side forces the usually wedge-shaped door into its socket to create a seal, which prevents it from being opened until the pressure is equalised on both sides. A non-plug door relies on the strength of the locking mechanism to keep the door shut.

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Plug door

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A plug door is a door designed to seal itself by taking advantage of pressure difference on its two sides and is typically used on aircraft with cabin...

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Alaska Airlines Flight 1282

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after takeoff on January 5, 2024, a door plug (a structure installed to replace an optional emergency exit door) on the Boeing 737 MAX 9 aircraft blew...

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Bus doors

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doors on buses and coaches include conventional doors, folding doors, sliding plug doors, coach doors and inward gliding doors. A conventional door,...

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Apollo 1

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high-pressure pure oxygen cabin atmosphere. Rescue was prevented by the plug door hatch, which could not be opened against the internal pressure of the...

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Door

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mitigated with plug doors, which open inward. They are secured into their door frames by the difference in air pressure. Most cabin doors and emergency...

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Boeing 737 MAX groundings

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complete enhanced inspections which include both left and right cabin door exit plugs, door components, and fasteners. Operators must also complete corrective...

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Pocket door

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and ability to open quickly. They have however fallen out of favor for plug doors and external sliding in some regions, most notably Europe, China and to...

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Space capsule

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on astronaut preference, the Block II CM would replace the two-piece plug door hatch cover, chosen to avoid an accidental hatch opening such as had happened...

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United Airlines Flight 811

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Boeing 747 was designed with an outward-hinging cargo door, unlike a plug door which opens inward and jams against its frame when closed as the pressure...

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Boeing 777X

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extended up the fuselage side to a passenger plug door which blew out − and not an outward-hinged cargo door. In October 2019, the JATR board created to...

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Koenigsegg Gemera

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The Koenigsegg Gemera is a limited production four-seat plug-in hybrid grand tourer (or 2-door sports saloon) to be manufactured by the Swedish automobile...

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Glow plug

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In a diesel engine, a glow plug (also spelled glowplug) is a heating device used to aid starting of the engine in cold weather. This device is a pencil-shaped...

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Boeing Everett Factory

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production expansion of the 737 MAX as a result of the in-flight loss of a plug door panel of a MAX 9 jet. The Boeing 747 is a large-size, wide-body, four-engine...

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Pin tumbler lock

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drilling, picking, bumping, snapping, and plug extraction methods of attack. When fitting uprated cylinder door locks it is advisable to make sure they...

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US Standard Light Rail Vehicle

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and included the elimination of the trouble-plagued plug doors in favor of traditional folding doors, and new roof-mounted air-conditioning units. All of...

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500 Series Shinkansen

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(11 ft 1 in) Height 3,690 mm (12 ft 1 in) Doors Two plug doors per side (intermediate cars) One plug door per side (end cars) Maximum speed W set: 300 km/h...

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Vande Metro

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passengers. These coaches will include features like automatic plug doors, touch-free doors, wheelchair-accessible lavatories, a passenger talkback system...

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Toyota Prius

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hatchback. The production version of the Prius plug-in hybrid was released in 2012. The second generation of the plug-in variant, the Prius Prime, was released...

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Refrigerator car

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flush, "plug" style sliding door was introduced as an option, providing a larger door to ease loading and unloading. The tight-fitting doors were better...

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Human spaceflight

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rapidly. The high pressure, increased by the fire, prevented removal of the plug door hatch cover in time to rescue the crew. All three astronauts—Gus Grissom...

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Uncontrolled decompression

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or intentionally. The plug door design ensures that when the pressure inside the cabin exceeds the pressure outside, the doors are forced shut and will...

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Turkish Airlines Flight 981

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that it had been designed to withstand. The passenger doors on the DC-10 are inward-opening plug doors, designed to prevent opening while the aircraft is...

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Suzuki Swift

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generations and four body configurations—three-door hatchback, four-door sedan, five-door hatchback and two-door convertible—and using the Suzuki G engine...

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