What use do these “remove before takeoff” thingies on the emergency exit of airplanes do?

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They look like a plug or key of some sort, located right next/on the emergency exit. I even saw the stewards TRIPLE check each other if it was removed so it must be really important.
Thankful if someone explains!

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5 Answers

Anonymous 0 Comments

There are a lot of red tags on airplanes that say “remove before flight”. Generally they cover holes that would cause serious problems if they were clogged by debris (like the pitot static system or engine cowlings). Some of them lock control surfaces (ailerons, rudder, elevator) that would otherwise flutter in the wind and get damaged. If it’s part of the emergency exit and the flight attendant’s responsibility, it may be a safety system that they are securing against accidental activation until the doors are closed and locked.

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