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I recently noticed while flying my Mavic Mini that its front right arm vibrates loudly while descending. Especially when I start to descend, the arm visibly vibrates and makes a low-pitched sound as opposed to the normal high-pitched buzzing. Is this an issue?

I checked the screws holding the props on - they're tight enough, and the props are only slightly chipped (much of the silver stripes on the end is still there), and that goes for all of the props, not just this one.

Could someone tell me what's going on / how to fix this? I'm concerned the drone will fall out of the sky if something breaks loose.

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  • $\begingroup$ Is it a normal descent rate? Are you descending straight down? $\endgroup$
    – MD88Fan
    Commented Oct 14, 2021 at 16:49
  • $\begingroup$ Yes, its a normal descent rate. It's specifically when the props slow down at all that this happens. $\endgroup$
    – Proxy303
    Commented Oct 14, 2021 at 17:29
  • $\begingroup$ That’s odd! I have no idea what’s causing that. I’m pretty interested myself! $\endgroup$
    – MD88Fan
    Commented Oct 14, 2021 at 22:03

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So I found the problem. One of the props on that arm only was warped, causing irregular airflow and vibrating the arm. I changed out that prop and the issue disappeared.

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  • $\begingroup$ 'new' vibration is nearly always the prop or motor screws, so you checked all the right things. If you're not sure about prop damage, the easy option is to change the prop and see if the vibration gets better. $\endgroup$
    – Robin Bennett
    Commented Oct 18, 2021 at 8:00

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