this post was submitted on 10 Jan 2024
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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.
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.
Interesting. Now I'm wondering if the bathroom doors also blow out if there is decompression.
Those don't seal well, so probably not