this post was submitted on 10 Jan 2024
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Alaska flight incident reveals another feature Boeing didn’t inform pilots about - Federal investigators said that Boeing didn’t make pilots aware that when a plane rapidly depressurizes, the cockp...::undefined

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[–] [email protected] 60 points 10 months ago (18 children)

If that design is necessary it has presumably always been like that on every pressurized plane ever built. So it shouldn't have been a surprise. But, some vents should be able to equalize the pressure without opening the door.

ISTR hearing that El Al planes had separate entrances for the cockpit and passenger compartment so there was no way to enter or leave the cockpit except on the ground. No door, just a reinforced wall. But maybe that was a post-911 urban legend.

[–] [email protected] 39 points 10 months ago (3 children)

Aircraft maintenance has been doing the negative pressure unlock tests on cockpit doors for decades, its honestly surprising what isn't common knowledge. Like others have said, rapid decompression of only a portion of the aircraft is very bad, and will result in massive structural failure as individual compartments aren't pressure rated and will blow apart. The doors I've had experience with had large panels that would pop out when in a negative pressure event.

[–] [email protected] 5 points 10 months ago (2 children)

Interesting. Now I'm wondering if the bathroom doors also blow out if there is decompression.

[–] [email protected] 5 points 10 months ago

Those don't seal well, so probably not

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