I always see this small black triangle on the inside of airplane walls. What does it mean or do? - Quora
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Flight attendant gives reason behind black triangle above plane window | Travel News | Travel | Express.co.uk
![feature identification - What does this black triangle placard on board an A320 denote? - Aviation Stack Exchange feature identification - What does this black triangle placard on board an A320 denote? - Aviation Stack Exchange](https://i.stack.imgur.com/XCiaB.jpg)
feature identification - What does this black triangle placard on board an A320 denote? - Aviation Stack Exchange
![feature identification - What does this black triangle placard on board an A320 denote? - Aviation Stack Exchange feature identification - What does this black triangle placard on board an A320 denote? - Aviation Stack Exchange](https://i.stack.imgur.com/7QTNf.png)
feature identification - What does this black triangle placard on board an A320 denote? - Aviation Stack Exchange
![I always see this small black triangle on the inside of airplane walls. What does it mean or do? - Quora I always see this small black triangle on the inside of airplane walls. What does it mean or do? - Quora](https://qph.cf2.quoracdn.net/main-qimg-4e0f71b0cace31d4cc8f87d9dd33fcf9.webp)
I always see this small black triangle on the inside of airplane walls. What does it mean or do? - Quora
![Flight attendant reveals the true reason behind the small black triangle on the wall of the plane: 'Mystery solved' | Daily Mail Online Flight attendant reveals the true reason behind the small black triangle on the wall of the plane: 'Mystery solved' | Daily Mail Online](https://i.dailymail.co.uk/1s/2024/03/21/04/82717175-0-image-a-13_1710995197593.jpg)