First post and probably a dumb question. But can someone tell me what the small circular knob is on the A320’s corner window pillars are? For lack of a better explanation, it looks like a black and white “ying yang” symbol, with a black rectangular switch underneath it. It’s INOP in both the MS and …

A320 Buttons on window pillars

HawkMoth9135 July 10, 2022, 5:26am 2

I think they are controls for the captain’s and first officer’s reading lights, on the left and right respectively.

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