[layer8]

The point is, if the owner thinks it can be repaired, they shouldn’t call for a replacement in the first place. And indeed they wouldn’t get one, because they wouldn’t break the blade. So it’s completely under control of the owner.

[Levitating]

Sure but the owner could've technically been left with a spare part in this case

Though it's not that likely that users will try to replace the blades on a fan.